Log24

Sunday, November 2, 2025

Worth the Click?

Filed under: General — Tags: , — m759 @ 11:29 am

https://www.facebook.com/stories/104825665014664/

Monday, August 4, 2025

For the Boys in the Kitchen* —
Yin-Yang Man** at Ninefold Window of Opportunity

Filed under: General — Tags: , — m759 @ 11:52 pm

* Vide  November 7, 2022.

**  log24.com/log/pix25/250804-Bohr-personal-yin-yang-emblem.jpg

Copenhagen  Drafts

Filed under: General — Tags: , — m759 @ 3:22 pm

Midrash —

Scholium —

"… die Schönheit… [ist] die
 richtige Übereinstimmung
 der Teile miteinander
 und mit dem Ganzen."

"Beauty is the proper conformity
 of the parts to one another
 and to the whole."
 
  — Werner Heisenberg,
"Die Bedeutung des Schönen
 in der exakten Naturwissenschaft,"
 address delivered to the
 Bavarian Academy of Fine Arts,
 Munich, 9 Oct. 1970, reprinted in
 Heisenberg's Across the Frontiers,
 translated by Peter Heath,
 Harper & Row, 1974

Monday, July 15, 2024

Cool Times at Copenhagen High

Filed under: General — Tags: — m759 @ 8:03 pm

Monday, June 10, 2024

Fast Times for Copenhagen High

Filed under: General — Tags: , , — m759 @ 10:14 pm

"Be true to your school" — Song lyric

Related blue comedy — "About 14 minutes . . . ."

Tuesday, March 19, 2024

Metadata: The Copenhagen Interpretation
of “Magic in the Moonlight”

Filed under: General — Tags: , — m759 @ 5:43 pm

Thursday, October 12, 2023

Fast Times at Copenhagen High

Filed under: General — Tags: , , , — m759 @ 1:31 pm

Wednesday, March 13, 2019

The Origin of Change . . .

Filed under: General — Tags: — m759 @ 10:00 pm

According to Wallace Stevens:

From Savage Logic

Sunday, March 15, 2009  5:24 PM

The Origin of Change

A note on the figure
from this morning's sermon:

Diamond Theory version of 'The Square Inch Space' with yin-yang symbol for comparison

"Two things of opposite natures seem to depend
On one another, as a man depends 
On a woman, day on night, the imagined 
On the real. This is the origin of change. 
Winter and spring, cold copulars, embrace 
And forth the particulars of rapture come."

— Wallace Stevens,   
"Notes Toward a Supreme Fiction,"
Canto IV of "It Must Change"

This  post was suggested by the following passage —

" the Fano plane ,
a set of seven points
grouped into seven lines
that has been called
'the combinatorialist’s coat of arms.' "

— Blake Stacey in a post with tomorrow's date:

and by Stacey at another weblog, in a post dated Jan. 29, 2019, 

"(Yes, Bohr was the kind of guy who would choose
the yin-yang symbol as his coat of arms.)"

Yes, Stacey is the kind of guy who would casually dismiss
Bohr's coat of arms. 

Related material — 

(See also Faust in Copenhagen in this  journal)—

» more

Wednesday, March 22, 2017

So Set ’Em Up, Jo

Filed under: General — Tags: — m759 @ 1:40 pm

“Danes have been called the happiest people.
I wonder how they measure this.”

Copenhagen designer in today's online New York Times .
A version of this article is to appear in print on March 26, 2017,
in T Magazine  with the headline: "Gray Matters."

See also last night's quarter-to-three post as well as
the webpage "Grids, You Say?" by Norwegian artist Josefine Lyche.

Tuesday, September 29, 2015

Quotes for Michaelmas

Filed under: General — Tags: , — m759 @ 9:48 pm

A search in this journal for material related to the previous post
on theta characteristics yields

"The Solomon Key  is the working title of an unreleased
novel in progress by American author Dan Brown. 
The Solomon Key  will be the third book involving the
character of the Harvard professor Robert Langdon,
of which the first two were Angels & Demons  (2000) and 
The Da Vinci Code  (2003)." — Wikipedia

"One has O+(6) ≅ S8, the symmetric group of order 8! …."
 — "Siegel Modular Forms and Finite Symplectic Groups,"
by Francesco Dalla Piazza and Bert van Geemen, 
May 5, 2008, preprint.

"It was only in retrospect
that the silliness
became profound."

— Review of   
Faust in Copenhagen

"The page numbers
are generally reliable."

— Michaelmas 2007 

For further backstory, click the above link "May 5, 2008," 
which now leads to all posts tagged on080505

Friday, March 27, 2015

Pursuit of Gestalt*

Filed under: General — Tags: , — m759 @ 12:00 pm

The art above is by the Copenhagen studio
Hvass & Hannibal. For a photo of the artists,
see a webpage on Beijing Design Week 2011.

Hvass and Hannibal were apparently in Beijing
for the "open workshop," Sept. 17-23, 2011.

Gestalt-related material from this journal that week —

* Title suggested by that of a book by Quine.

Thursday, September 11, 2014

A Class by Itself

Filed under: General — Tags: , , — m759 @ 9:48 am

The American Mathematical Society yesterday:

Harvey Cohn (1923-2014)
Wednesday September 10th 2014

Cohn, an AMS Fellow and a Putnam Fellow (1942), died May 16 at the age of 90. He served in the Navy in World War II and following the war received his PhD from Harvard University in 1948 under the direction of Lars Ahlfors. He was a member of the faculty at Wayne State University, Stanford University, Washington University in St. Louis, the University of Arizona, and at City College of New York, where he was a distinguished professor. After retiring from teaching, he also worked for the NSA. Cohn was an AMS member since 1942.

Paid death notice from The New York Times , July 27, 2014:

COHN–Harvey. Fellow of the American Mathematical Society and member of the Society since 1942, died on May 16 at the age of 90. He was a brilliant Mathematician, an adoring husband, father and grandfather, and faithful friend and mentor to his colleagues and students. Born in New York City in 1923, Cohn received his B.S. degree (Mathematics and Physics) from CCNY in 1942. He received his M.S. degree from NYU (1943), and his Ph.D. from Harvard (1948) after service in the Navy (Electronic Technicians Mate, 1944-46). He was a member of Phi Beta Kappa (Sigma Chi), won the William Lowell Putnam Prize in 1942, and was awarded the Townsend Harris Medal in 1972. A pioneer in the intensive use of computers in an innovative way in a large number of classical mathematical problems, Harvey Cohn held faculty positions at Wayne State University, Stanford, Washington University Saint Louis (first Director of the Computing Center 1956-58), University of Arizona (Chairman 1958-1967), University of Copenhagen, and CCNY (Distinguished Professor of Mathematics). After his retirement from teaching, he worked in a variety of capacities for the National Security Agency and its research arm, IDA Center for Computing Sciences. He is survived by his wife of 63 years, Bernice, of Laguna Woods, California and Ft. Lauderdale, FL, his son Anthony, daughter Susan Cohn Boros, three grandchildren and one great-granddaughter.

— Published in The New York Times  on July 27, 2014

See also an autobiographical essay found on the web.

None of the above sources mention the following book, which is apparently by this same Harvey Cohn. (It is dedicated to "Tony and Susan.")

From Google Books:

Advanced Number Theory, by Harvey Cohn
Courier Dover Publications, 1980 – 276 pages
(First published by Wiley in 1962 as A Second Course in Number Theory )

Publisher's description:

" 'A very stimulating book … in a class by itself.'— American Mathematical Monthly

Advanced students, mathematicians and number theorists will welcome this stimulating treatment of advanced number theory, which approaches the complex topic of algebraic number theory from a historical standpoint, taking pains to show the reader how concepts, definitions and theories have evolved during the last two centuries. Moreover, the book abounds with numerical examples and more concrete, specific theorems than are found in most contemporary treatments of the subject.

The book is divided into three parts. Part I is concerned with background material — a synopsis of elementary number theory (including quadratic congruences and the Jacobi symbol), characters of residue class groups via the structure theorem for finite abelian groups, first notions of integral domains, modules and lattices, and such basis theorems as Kronecker's Basis Theorem for Abelian Groups.

Part II discusses ideal theory in quadratic fields, with chapters on unique factorization and units, unique factorization into ideals, norms and ideal classes (in particular, Minkowski's theorem), and class structure in quadratic fields. Applications of this material are made in Part III to class number formulas and primes in arithmetic progression, quadratic reciprocity in the rational domain and the relationship between quadratic forms and ideals, including the theory of composition, orders and genera. In a final concluding survey of more recent developments, Dr. Cohn takes up Cyclotomic Fields and Gaussian Sums, Class Fields and Global and Local Viewpoints.

In addition to numerous helpful diagrams and tables throughout the text, appendices, and an annotated bibliography, Advanced Number Theory  also includes over 200 problems specially designed to stimulate the spirit of experimentation which has traditionally ruled number theory."

User Review –

"In a nutshell, the book serves as an introduction to Gauss' theory of quadratic forms and their composition laws (the cornerstone of his Disquisitiones Arithmeticae) from the modern point of view (ideals in quadratic number fields). I strongly recommend it as a gentle introduction to algebraic number theory (with exclusive emphasis on quadratic number fields and binary quadratic forms). As a bonus, the book includes material on Dirichlet L-functions as well as proofs of Dirichlet's class number formula and Dirichlet's theorem in primes in arithmetic progressions (of course this material requires the reader to have the background of a one-semester course in real analysis; on the other hand, this material is largely independent of the subsequent algebraic developments).

Better titles for this book would be 'A Second Course in Number Theory' or 'Introduction to quadratic forms and quadratic fields'. It is not a very advanced book in the sense that required background is only a one-semester course in number theory. It does not assume prior familiarity with abstract algebra. While exercises are included, they are not particularly interesting or challenging (if probably adequate to keep the reader engaged).

While the exposition is *slightly* dated, it feels fresh enough and is particularly suitable for self-study (I'd be less likely to recommend the book as a formal textbook). Students with a background in abstract algebra might find the pace a bit slow, with a bit too much time spent on algebraic preliminaries (the entire Part I—about 90 pages); however, these preliminaries are essential to paving the road towards Parts II (ideal theory in quadratic fields) and III (applications of ideal theory).

It is almost inevitable to compare this book to Borevich-Shafarevich 'Number Theory'. The latter is a fantastic book which covers a large superset of the material in Cohn's book. Borevich-Shafarevich is, however, a much more demanding read and it is out of print. For gentle self-study (and perhaps as a preparation to later read Borevich-Shafarevich), Cohn's book is a fine read."

Thursday, May 30, 2013

Two Characters

Filed under: General — Tags: — m759 @ 12:00 pm

Yesterday, May 29, was JFK's birthday.
The above is a belated quotation for that occasion.

Click on the quotation for truth instead of rhetoric.

(Why the above Google Books description of the quotation's
source is in Danish, I do not know. A search for
Bohr + Chinese in this journal may be relevant, as may
also be Faust in Copenhagen.)

Sunday, November 18, 2012

Sermon

Filed under: General,Geometry — Tags: , , , — m759 @ 11:00 am

Happy birthday to

IMAGE- Margaret Atwood, Kim Wilde, Peta Wilson

Today's sermon, by Marie-Louise von Franz

Number and Time, by Marie-Louise von Franz

For more on the modern physicist analyzed by von Franz,
see The Innermost Kernel , by Suzanne Gieser.

Another modern physicist, Niels Bohr, died
on this date in 1962

Diamond Theory version of 'The Square Inch Space' with yin-yang symbol for comparison

The circle above is marked with a version
of the classic Chinese symbol
adopted as a personal emblem
by Danish physicist Niels Bohr,
leader of the Copenhagen School.

For the square, see the diamond theorem.

"Two things of opposite natures seem to depend
On one another, as a man depends
On a woman, day on night, the imagined
On the real. This is the origin of change.
Winter and spring, cold copulars, embrace
And forth the particulars of rapture come."

— Wallace Stevens,
  "Notes Toward a Supreme Fiction,"
  Canto IV of "It Must Change"

Thursday, October 11, 2012

Plots

Filed under: General — Tags: — m759 @ 11:02 am

In memory of Copenhagen saxophonist John Tchicai,
who reportedly died last Sunday, October 7, 2012—

IMAGE- John Tchicai album 'Look to the Neutrino'

Quoted in this journal on the reported date of his death

IMAGE- NY Times review of 'Faust in Copenhagen'

But passion ever spins our plots,
And Gretchen is my treasure!

— Wolfgang Pauli character in
     Faust in Copenhagen

Related material—

"Physik als Quelle der Spiritualität:
Ein Weg von 'Gretchen' zurück zu 'Beatrice'?
 
 "
by Bruno Binggeli

Sunday, October 7, 2012

Faust at Harvard (For Bohr’s Birthday)

Filed under: General — Tags: — m759 @ 9:00 pm

Today's Harvard Crimson

Students Discuss Mental Health

In an effort to break the silence on an often-stigmatized topic,
members of the Harvard community gathered to share
experiences with mental illness through spoken word,
interpretive dance, and candid conversations at Friday night’s
second-annual “Words on the Mind” open mic night.

Related material from this  journal on Friday

The Hallowed Crucible

Some related symbolism (headings added Oct. 7)—

Words:

http://www.log24.com/log/pix11C/111119-NuclearSymbol-75sq.jpg

Applied Mathematics
(See Nov. 19, 2011.)

The Mind:

http://www.log24.com/log/pix11C/111118-CentralProjection.gif

Pure Mathematics
(See Tesseract.)


Today's (Sunday, Oct. 7, 2012)  Google Doodle for Bohr's birthday—


Review
  (See also Faust in Copenhagen in this journal)—

» more

Sunday, June 24, 2012

Summer Reading

Filed under: General — Tags: , — m759 @ 7:59 am

"What summer reading needs to be is purposeful."

New York Times  opinion column today

One of a set of posts titled "Summer Reading"
in this journal in 2007—

(Click for the original post)

IMAGE- Log24 post from August 21, 2007 - 'In the Details'

It was only in retrospect
that the silliness
became profound.

— Review of   
Faust in Copenhagen

Friday, January 22, 2010

Meta Physics

Filed under: General — Tags: — m759 @ 9:00 am

Church Emblem

Yin-Yang emblem of duality in Niels Bohr's coat of arms, Frederiksborg Castle Church

Related material:

Faust in Copenhagen,
Meta Physics,
and yesterday's entry.

Friday, September 11, 2009

Friday September 11, 2009

Filed under: General — Tags: , — m759 @ 1:00 pm
For 9/11

Cover of 'Underworld,' by Don DeLillo, First Edition, Advance Reader's Copy, 1997

 

Cover of Underworld,
 by Don DeLillo, First Edition,
 Advance Reader's Copy, 1997

"Time and chance
happeneth to them all."
Ecclesiastes 9:11  

Related material:

1. The previous entry, on
  Copenhagen physicist
Aage Bohr, and      
2. Notes from this journal
 from Bohr's birthday,
 June 19th, through  
        Midsummer Night, 2007…
 including notes on   
  Faust in Copenhagen
   3. Walpurgisnacht 2008 and
 Walpurgisnacht 2009

Thursday, July 2, 2009

Thursday July 2, 2009

Filed under: General — Tags: — m759 @ 9:29 pm
Meditation

on a joke by George Carlin,
a passage by Kierkegaard,
and the death on this date
12 years ago
of actor James Stewart

The Catholic Carlin:

“Thank you, Mr. Twain. Have your people call my people.” –George Carlin on learning he had won the Mark Twain award. Twain’s people were Protestant, Carlin’s Catholic.

The Protestant Kierkegaard:

“… the moment is not properly an atom of time but an atom of eternity. It is the first reflection of eternity in time, its first attempt, as it were, at stopping time….

Once here in Copenhagen there were two actors who probably never thought that their performance could have a deeper significance. They stepped forth onto the stage, placed themselves opposite each other, and then began the mimical representation of one or another passionate conflict. When the mimical act was in full swing and the spectators’ eyes followed the story with expectation of what was to follow, they suddenly stopped and remained motionless as though petrified in the mimical expression of the moment. The effect of this can he exceedingly comical, for the moment in an accidental way becomes commensurable with the eternal.”

Catholic tableau
(with Vivien Leigh
   representing the Church)
    of Salvation by Works

The cast of  'Streetcar Named Desire' in the radio scene

Protestant tableau
(with James Stewart
 as Protestant Pilgrim)
    of Salvation by Grace

Grace Kelly and James Stewart in 'Rear Window'

Click on either tableau
for a (much) larger image.

* Thanks to University Diaries for an entry on Clancy Martin, a philosophy professor in the “show me” state, and his experiences with AA. For a sample of Martin’s style, see a piece he wrote on Fabergé Easter eggs. For other Easter egg material, see this journal and (via a link) The Harvard Crimson, Easter 2008.  A valuable philosophical remark by Martin in a recent interview:

“An unscrupulous jeweler will swap diamonds for cheaper ones when jewelry is dropped off to be sized or repaired, he said.

‘It happens all the time,’ Martin said. ‘Nobody’s watching.'”

Saturday, March 28, 2009

Saturday March 28, 2009

Filed under: General,Geometry — Tags: , , — m759 @ 11:07 pm

The Rest
of the Story

Today's previous entry discussed the hermeneutics of the midday NY and PA lottery numbers.

The rest of the story:
 

The Revelation Game
(continued from 7/26, 2008)

 
Lotteries
on Reba's
birthday,
2009
Pennsylvania
(No revelation)
New York
(Revelation)
Mid-day
(No belief)
No belief,
no revelation

726
Revelation
without belief

378
Evening
(Belief)
Belief without
revelation

006
Belief and
revelation

091

Interpretations of the evening numbers–

The PA evening number, 006, may be viewed as a followup to the PA midday 726 (or 7/26, the birthday of Kate Beckinsale and Carl Jung). Here 006 is the prestigious "00" number assigned to Beckinsale.
 

Will: Do you like apples?     
Clark: Yeah.                       
Will: Well, I got her number.
 How do you like them apples?

— "Good Will Hunting

Kate Beckinsale in 'Underworld: Evolution'

The NY evening number, 091, may be viewed as a followup to the NY midday 378 (the number of pages in The Innermost Kernel by Suzanne Gieser, published by Springer, 2005)–

Page 91: The entire page is devoted to the title of the book's Part 3– "The Copenhagen School and Psychology"–
 

Page 91 of 'The Innermost Kernel' by Suzanne Gieser, Springer 2005

The next page begins: "With the crisis of physics, interest in epistemological and psychological questions grew among many theoretical physicists. This interest was particularly marked in the circle around Niels Bohr."
 

A particularly
marked circle
 from March 15:

Diamond Theory version of 'The Square Inch Space' with yin-yang symbol for comparison

The circle above is
marked with a version of
the classic Chinese symbol
adopted as a personal emblem
by Danish physicist Niels Bohr,
leader of the Copenhagen School.

"Two things of opposite natures seem to depend
On one another, as a man depends
On a woman, day on night, the imagined

On the real. This is the origin of change.
Winter and spring, cold copulars, embrace
And forth the particulars of rapture come."

-- Wallace Stevens,
  "Notes Toward a Supreme Fiction,"
   Canto IV of "It Must Change"

The square above is marked
with a graphic design
related to the four-diamond
figure of Jung's Aion.

Monday, May 5, 2008

Monday May 5, 2008

Filed under: General — Tags: , , , — m759 @ 11:07 am
Lottery Sermon

"And take upon's
the mystery of things
 as if we were God's spies"
King Lear  

PA Lottery Sunday, May 4, 2008: mid-day 170, evening 144

From Log24 on Aug. 19, 2003
and on Ash Wednesday, 2004:
a reviewer on
An Instance of the Fingerpost::

"Perhaps we are meant to
see the story as a cubist
   retelling of the crucifixion."

From Log24 on
Michaelmas 2007:

Kate Beckinsale (in 'Pearl Harbor') pointing to an instance of the number 144

Google searches suggested by
Sunday's PA lottery numbers
(mid-day 170, evening 144)
and by the above
figure of Kate Beckinsale
pointing to an instance of
the number 144 —

Click to enlarge:

Search for the meaning of 170 and 144, the PA lottery numbers of Sunday, May 4, 2008

Related material:

Beckinsale in another film
(See At the Crossroads,
Log24, Dec. 8, 2006):

"For every kind of vampire,
there is a kind of cross."
Gravity's Rainbow  
 
Kate Beckinsale in Underworld: Evolution

 

Kate Beckinsale, adapted from
poster for Underworld: Evolution
(DVD release date 6/6/6)
 
There is such a thing
as a tesseract.

"It was only in retrospect
that the silliness
became profound."

— Review of  
Faust in Copenhagen

From the conclusion of
Joan Didion's 1970 novel
  Play It As It Lays

Cover of 'Play It As It Lays'

"I know what 'nothing' means,
and keep on playing."

From Play It As It Lays,
the paperback edition of 1990
  (Farrar, Straus and Giroux) —

Page 170:

"By the end of a week she was thinking constantly
about where her body stopped and the air began,
about the exact point in space and time that was the
difference between Maria and other. She had the sense
that if she could get that in her mind and hold it for

170  

even one micro-second she would have what she had
come to get."

"The page numbers
are generally reliable."

Michaelmas 2007   

Tuesday, April 29, 2008

Tuesday April 29, 2008

Sacerdotal Jargon
at Harvard:

Thomas Wolfe

Thomas Wolfe
(Harvard M.A., 1922)

versus

Rosalind Krauss

Rosalind Krauss
(Harvard M.A., 1964,
Ph.D., 1969)

on

The Kernel of Eternity

"No culture has a pact with eternity."
George Steiner, interview in  
The Guardian of April 19

"At that instant he saw,
in one blaze of light, an image
of unutterable conviction….
the core of life, the essential
pattern whence all other things
proceed, the kernel of eternity."

— Thomas Wolfe, Of Time
and the River, quoted in
Log24 on June 9, 2005

 

From today's online Harvard Crimson:

"… under the leadership of Faust,
Harvard students should look forward
to an ever-growing opportunity for
international experience
and artistic endeavor."

 

Wolfgang Pauli as Mephistopheles

Pauli as Mephistopheles
in a 1932 parody of
Goethe's
Faust at Niels Bohr's
institute in Copenhagen

From a recent book
on Wolfgang Pauli,
The Innermost Kernel:

Pauli's Dream Square (square plus the two diagonals)

A belated happy birthday
to the late
Felix Christian Klein
  (born on April 25) —

The Klein Group: The four elements in four colors, with black points representing the identity

Another Harvard figure quoted here on Dec. 5, 2002:

"The theory of poetry, that is to say, the total of the theories of poetry, often seems to become in time a mystical theology or, more simply, a mystique. The reason for this must by now be clear. The reason is the same reason why the pictures in a museum of modern art often seem to become in time a mystical aesthetic, a prodigious search of appearance, as if to find a way of saying and of establishing that all things, whether below or above appearance, are one and that it is only through reality, in which they are reflected or, it may be, joined together, that we can reach them. Under such stress, reality changes from substance to subtlety, a subtlety in which it was natural for Cézanne to say: 'I see planes bestriding each other and sometimes straight lines seem to me to fall' or 'Planes in color…. The colored area where shimmer the souls of the planes, in the blaze of the kindled prism, the meeting of planes in the sunlight.' The conversion of our Lumpenwelt went far beyond this. It was from the point of view of another subtlety that Klee could write: 'But he is one chosen that today comes near to the secret places where original law fosters all evolution. And what artist would not establish himself there where the organic center of all movement in time and space– which he calls the mind or heart of creation– determines every function.' Conceding that this sounds a bit like sacerdotal jargon, that is not too much to allow to those that have helped to create a new reality, a modern reality, since what has been created is nothing less."

— Wallace Stevens, Harvard College Class of 1901, "The Relations between Poetry and Painting" in The Necessary Angel (Knopf, 1951)

From a review of Rosalind Krauss's The Optical Unconscious  (MIT Press hardcover, 1993):

Krauss is concerned to present Modernism less in terms of its history than its structure, which she seeks to represent by means of a kind of diagram: "It is more interesting to think of modernism as a graph or table than a history." The "table" is a square with diagonally connected corners, of the kind most likely to be familiar to readers as the Square of Opposition, found in elementary logic texts since the mid-19th century. The square, as Krauss sees it, defines a kind of idealized space "within which to work out unbearable contradictions produced within the real field of history." This she calls, using the inevitable gallicism, "the site of Jameson's Political Unconscious" and then, in art, the optical unconscious, which consists of what Utopian Modernism had to kick downstairs, to repress, to "evacuate… from its field."

— Arthur C. Danto in ArtForum, Summer 1993

Rosalind Krauss in The Optical Unconscious (MIT Press paperback, 1994):

For a presentation of the Klein Group, see Marc Barbut, "On the Meaning of the Word 'Structure' in Mathematics," in Introduction to Structuralism, ed. Michael Lane (New York: Basic Books, 1970). Claude Lévi-Strauss uses the Klein group in his analysis of the relation between Kwakiutl and Salish masks in The Way of the Masks, trans. Sylvia Modelski (Seattle: University of Washington Press, 1982), p. 125; and in relation to the Oedipus myth in "The Structural Analysis of Myth," Structural Anthropology, trans. Claire Jackobson [sic] and Brooke Grundfest Schoepf (New York: Basic Books, 1963). In a transformation of the Klein Group, A. J. Greimas has developed the semiotic square, which he describes as giving "a slightly different formulation to the same structure," in "The Interaction of Semiotic Constraints," On Meaning (Minneapolis: University of Minnesota Press, 1987), p. 50. Jameson uses the semiotic square in The Political Unconscious (see pp. 167, 254, 256, 277) [Fredric Jameson, The Political Unconscious: Narrative as a Socially Symbolic Act (Ithaca: Cornell University Press, 1981)], as does Louis Marin in "Disneyland: A Degenerate Utopia," Glyph, no. 1 (1977), p. 64.

For related non-sacerdotal jargon, see…
 

Wikipedia on the Klein group (denoted V, for Vierergruppe):

In this representation, V is a normal subgroup of the alternating group A4 (and also the symmetric group S4) on 4 letters. In fact, it is the kernel of a surjective map from S4 to S3. According to Galois theory, the existence of the Klein four-group (and in particular, this representation of it) explains the existence of the formula for calculating the roots of quartic equations in terms of radicals.

For radicals of another sort, see A Logocentric Meditation, A Mass for Lucero, and [update of 7 PM] Steven Erlanger in today's New York Times— "France Still Divided Over Lessons of 1968 Unrest."

For material related to Klee's phrase mentioned above by Stevens, "the organic center of all movement in time and space," see the following Google search:

April 29, 2008, Google search on 'penrose space time'

Click on the above
 image for details.

See also yesterday's
Religious Art.

Monday, April 14, 2008

Monday April 14, 2008

Filed under: General,Geometry — Tags: , , — m759 @ 2:00 am

Classical Quantum

From this morning's
New York Times:

Physicist John A. Wheeler with diagrams of classical and quantum ways to get from point A to point B

"John A. Wheeler, a visionary physicist… died Sunday morning [April 13, 2008]….

… Dr. Wheeler set the agenda for generations of theoretical physicists, using metaphor as effectively as calculus to capture the imaginations of his students and colleagues and to pose questions that would send them, minds blazing, to the barricades to confront nature….

'He rejuvenated general relativity; he made it an experimental subject and took it away from the mathematicians,' said Freeman Dyson, a theorist at the Institute for Advanced Study….

… he [Wheeler] sailed to Copenhagen to work with Bohr, the godfather of the quantum revolution, which had shaken modern science with paradoxical statements about the nature of reality.

'You can talk about people like Buddha, Jesus, Moses, Confucius, but the thing that convinced me that such people existed were the conversations with Bohr,' Dr. Wheeler said….

… Dr. Wheeler was swept up in the Manhattan Project to build an atomic bomb. To his lasting regret, the bomb was not ready in time to change the course of the war in Europe….

Dr. Wheeler continued to do government work after the war, interrupting his research to help develop the hydrogen bomb, promote the building of fallout shelters and support the Vietnam War….

… Dr. Wheeler wondered if this quantum uncertainty somehow applied to the universe and its whole history, whether it was the key to understanding why anything exists at all.

'We are no longer satisfied with insights only into particles, or fields of force, or geometry, or even space and time,' Dr. Wheeler wrote in 1981. 'Today we demand of physics some understanding of existence itself.'

At a 90th birthday celebration in 2003, Dr. Dyson said that Dr. Wheeler was part prosaic calculator, a 'master craftsman,' who decoded nuclear fission, and part poet. 'The poetic Wheeler is a prophet,' he said, 'standing like Moses on the top of Mount Pisgah, looking out over the promised land that his people will one day inherit.'"

Dennis Overbye, The New York Times,
    Monday, April 14, 2008

As prophets go, I prefer
 the poet Wallace Stevens:

"point A / In a perspective
that begins again / At B"

— Wallace Stevens,
"The Rock"

Thursday, November 22, 2007

Thursday November 22, 2007

Filed under: General — Tags: — m759 @ 4:44 am
Aspects of Symmetry

For theoretical physicist
Sidney Coleman,

Sidney Coleman (photo from Harvard  home page)

who died on Sunday
(Nov. 18, 2007)

A comment at Peter Woit’s weblog today:

T says (3:43 AM today)

I still don’t quite understand what *EXACTLY* Sidney Coleman contributed that merits such deep reverence for him after his demise; was he like Weinberg – i.e. a very intuitive and thoughtful field theorist – or Feynman – a highly creative and original thinker; or simply a good teacher who taught at (world-famous) Harvard – and hence his stature?

My reply (4:26 AM today, awaiting moderation):

T: The following quotes may be of interest.

“Sidney Coleman comes as close as any active physicist to assuming the mantle of Wolfgang Pauli as a trenchant critic of research and as an expositor of ongoing developments in theoretical physics.” –Book review of Aspects of Symmetry

“He has… played the role of Wolfgang Pauli of his generation; he liked to disprove ideas, and he was also a genius in explaining things to others.” –Lubos Motl

Related material:

Faust in Copenhagen

and

Kernel of Eternity

Sunday, November 18, 2007

Sunday November 18, 2007

Filed under: General — Tags: , — m759 @ 2:02 am
For Martin Scorsese
on his birthday, from
the New York Lottery:

 

Words and Music

Words:
In the Details

"It was only in retrospect
 that the silliness became profound.
The players were becoming possessors
of 'a truth with implicit powers
of good and evil,' Gino Segrè writes
in Faust in Copenhagen

And 'the devil… was in the details.'"

— George Johnson of
The New York Times,
quoted in Log24 on 6/23.

Music:
A Black Berry

"Her wall is filled with pictures,
she gets 'em one by one…."

Chuck Berry, quoted
in Log24 on 2/13.

NY Lottery Nov. 17, 2007: Midday 623, Evening 213

Related material:
Yesterday's Log24 entry

 

BlackBerry with pictures from Log24

Saturday, September 22, 2007

Saturday September 22, 2007

Filed under: General — Tags: , — m759 @ 6:23 am
Retrospect

"It was only in retrospect
that the silliness
became profound."
— Review of  
Faust in Copenhagen

Tuesday, July 24, 2007

Tuesday July 24, 2007

Filed under: General — Tags: — m759 @ 7:11 am
The Church of St. Frank

See yesterday’s entries for
some relevant quotations
from Wallace Stevens.

Further quotations for what
Marjorie Garber, replying to
a book review by
Frank Kermode, has called
the Church of St. Frank“–

Frank Kermode on

Harold Bloom:

“He has… a great, almost
selfish passion for poetry,
and he interprets difficult
texts as if there were no
more important activity
in the world, which may
be right.”

Page 348 of Wallace Stevens:
The Poems of Our Climate
,
by Harold Bloom
(1977, Cornell U. Press):

“The fiction of the leaves is now Stevens’ fiction…. Spring, summer, and autumn adorn the rock of reality even as a woman is adorned, the principle being the Platonic one of copying the sun as source of all images….

… They are more than leaves
              that cover the barren rock….

They bear their fruit    
             so that the year is known….

If they are more than leaves, then they are no longer language, and the leaves have ceased to be tropes or poems and have become magic or mysticism, a Will-to-Power over nature rather than over the anteriority of poetic imagery.”

For more on magic, mysticism, and the Platonic “source of all images,” see Scott McLaren on “Hermeticism and the Metaphysics of Goodness in the Novels of Charles Williams.” McLaren quotes Evelyn Underhill on magic vs. mysticism:

The fundamental difference between the two is this: magic wants to get, mysticism wants to give […] In mysticism the will is united with the emotions in an impassioned desire to transcend the sense-world in order that the self may be joined by love to the one eternal and ultimate Object of love […] In magic, the will unites with the intellect in an impassioned desire for supersensible knowledge. This is the intellectual, aggressive, and scientific temperament trying to extend its field of consciousness […] (Underhill 84; see also 178ff.)

— Underhill, Evelyn. Mysticism: A Study in the Nature and Development of Man’s Spiritual Consciousness. New York: Dutton, 1911.

For more on what Bloom calls the “Will-to-Power over nature,” see Faust in Copenhagen and the recent (20th- and 21st-century) history of Harvard University. These matters are also discussed in “Log24 – Juneteenth through Midsummer Night.”

For more on what Underhill calls “the intellectual, aggressive, and scientific temperament trying to extend its field of consciousness,” see the review, in the August 2007 Notices of the American Mathematical Society, of a book by Douglas Hofstadter– a writer on the nature of consciousness— by magician Martin Gardner.

Saturday, June 23, 2007

Saturday June 23, 2007

Filed under: General — Tags: — m759 @ 9:00 am
Faust in Copenhagen:
 
A Struggle for
the Soul of Physics

By Gino Segrè

Illustrated. 310 pp.
Viking. $25.95.

 The image “http://www.log24.com/log/pix07/FaustInCopenhagen.jpg” cannot be displayed, because it contains errors.

Review in the June 24
New York Times Book Review:

“As though their knowledge of the quantum secrets came with the power of prophecy, some three dozen of Europe’s best physicists ended their 1932 meeting in Copenhagen with a parody of Goethe’s ‘Faust.’….

It was only in retrospect that the silliness became profound. The players were becoming possessors of ‘a truth with implicit powers of good and evil,’ Gino Segrè writes in ‘Faust in Copenhagen,’ his inventive new book about the era. And ‘the devil… was in the details.'” –George Johnson

Related material:

This week’s entries
on Pauli and Faust,
the entries of
  June 3 through June 6,
and the five entries
ending on April 7, 2005,
with “In the Details

Thursday, June 21, 2007

Thursday June 21, 2007

Let No Man
Write My Epigraph

(See entries of June 19th.)

"His graceful accounts of the Bach Suites for Unaccompanied Cello illuminated the works’ structural logic as well as their inner spirituality."

Allan Kozinn on Mstislav Rostropovich in The New York Times, quoted in Log24 on April 29, 2007

"At that instant he saw, in one blaze of light, an image of unutterable conviction…. the core of life, the essential pattern whence all other things proceed, the kernel of eternity."

— Thomas Wolfe, Of Time and the River, quoted in Log24 on June 9, 2005

"… the stabiliser of an octad preserves the affine space structure on its complement, and (from the construction) induces AGL(4,2) on it. (It induces A8 on the octad, the kernel of this action being the translation group of the affine space.)"

— Peter J. Cameron, "The Geometry of the Mathieu Groups" (pdf)

"… donc Dieu existe, réponse!"

— Attributed, some say falsely,
to Leonhard Euler
 
"Only gradually did I discover
what the mandala really is:
'Formation, Transformation,
Eternal Mind's eternal recreation'"

(Faust, Part Two, as
quoted by Jung in
Memories, Dreams, Reflections)

 

Wolfgang Pauli as Mephistopheles

"Pauli as Mephistopheles
in a 1932 parody of
Goethe's Faust at Niels Bohr's
institute in Copenhagen.
The drawing is one of
many by George Gamow
illustrating the script."
Physics Today

 

"Borja dropped the mutilated book on the floor with the others. He was looking at the nine engravings and at the circle, checking strange correspondences between them.

'To meet someone' was his enigmatic answer. 'To search for the stone that the Great Architect rejected, the philosopher's stone, the basis of the philosophical work. The stone of power. The devil likes metamorphoses, Corso.'"

The Club Dumas, basis for the Roman Polanski film "The Ninth Gate" (See 12/24/05.)


"Pauli linked this symbolism
with the concept of automorphism."

The Innermost Kernel
 (previous entry)

And from
"Symmetry in Mathematics
and Mathematics of Symmetry
"
(pdf), by Peter J. Cameron,
a paper presented at the
International Symmetry Conference,
Edinburgh, Jan. 14-17, 2007,
we have

The Epigraph–

Weyl on automorphisms
(Here "whatever" should
of course be "whenever.")

Also from the
Cameron paper:

Local or global?

Among other (mostly more vague) definitions of symmetry, the dictionary will typically list two, something like this:

• exact correspondence of parts;
• remaining unchanged by transformation.

Mathematicians typically consider the second, global, notion, but what about the first, local, notion, and what is the relationship between them?  A structure M is homogeneous if every isomorphism between finite substructures of M can be extended to an automorphism of M; in other words, "any local symmetry is global."

Some Log24 entries
related to the above politically
(women in mathematics)–

Global and Local:
One Small Step

and mathematically–

Structural Logic continued:
Structure and Logic
(4/30/07):

This entry cites
Alice Devillers of Brussels–

Alice Devillers

"The aim of this thesis
is to classify certain structures
which are, from a certain
point of view, as homogeneous
as possible, that is which have
  as many symmetries as possible."

"There is such a thing
as a tesseract."

Madeleine L'Engle 

Wednesday, June 20, 2007

Wednesday June 20, 2007

Filed under: General,Geometry — Tags: , , , , — m759 @ 1:06 am

Kernel

Mathematical Reviews citation:

MR2163497 (2006g:81002) 81-03 (81P05)
Gieser, Suzanne The innermost kernel. Depth psychology and quantum physics. Wolfgang Pauli's dialogue with C. G. Jung. Springer-Verlag, Berlin, 2005. xiv+378 pp. ISBN: 3-540-20856-9

A quote from MR at Amazon.com:

"This revised translation of a Swedish Ph. D. thesis in philosophy offers far more than a discussion of Wolfgang Pauli's encounters with the psychoanalyst Carl Gustav Jung…. Here the book explains very well how Pauli attempted to extend his understanding beyond superficial esotericism and spiritism…. To understand Pauli one needs books like this one, which… seems to open a path to a fuller understanding of Pauli, who was seeking to solve a quest even deeper than quantum physics." (Arne Schirrmacher, Mathematical Reviews, Issue 2006g)
 

An excerpt:

 

The image “http://www.log24.com/theory/images/PauliSquare.gif” cannot be displayed, because it contains errors.

I do not yet know what Gieser means by "the innermost kernel." The following is my version of a "kernel" of sorts– a diagram well-known to students of anthropologist Claude Levi-Strauss and art theorist Rosalind Krauss:

The four-group is also known as the Vierergruppe or Klein group.  It appears, notably, as the translation subgroup of A, the group of 24 automorphisms of the affine plane over the 2-element field, and therefore as the kernel of the homomorphism taking A to the group of 6 automorphisms of the projective line over the 2-element field. (See Finite Geometry of the Square and Cube.)

Related material:

The "chessboard" of
   Nov. 7, 2006
(as revised Nov. 7, 2012)–

I Ching chessboard. Previous version replaced on Nov. 7, 2012, by original 1989 chessboard arrangement

I Ching chessboard

None of this material really has much to do with the history of physics, except for its relation to the life and thought of physicist Wolfgang Pauli— the "Mephistopheles" of the new book Faust in Copenhagen. (See previous entry.)

"Only gradually did I discover
what the mandala really is:
'Formation, Transformation,
Eternal Mind's eternal recreation'"

(Faust, Part Two, as
quoted by Jung in
Memories, Dreams, Reflections)
 

Tuesday, June 19, 2007

Tuesday June 19, 2007

Filed under: General — Tags: , — m759 @ 3:17 pm

 Faustus is gone:
regard his hellish fall

Marlowe

I have just read, in the New York Times Book Review that arrived in yesterday's mail, a review of Segre's Faust in Copenhagen.  The review, on news stands next Sunday, was titled by the Times "Meta Physicists."

On Faust— today's noon entry and yesterday's "Nightmare Lessons."

On "Meta Physicists"– an entry of June 6, on Cullinane College, has a section titled "Meta Physics."

On Copenhagen— an entry of Bloomsday Eve, 2004 on a native of that city.

Another Dane:

"Words, words, words."
Hamlet

Another metaphysics:

"317 is a prime,
not because we think so,
or because our minds
are shaped in one way
rather than another,
but because it is so,
because mathematical
reality is built that way."

 — G. H. Hardy,
A Mathematician's Apology

Saturday, September 17, 2005

Saturday September 17, 2005

Filed under: General — Tags: — m759 @ 1:06 pm
Time Fold,
continued

From Matt Glaser, Satchmo, the Philosopher:

“… the luminosity and perpetual freshness of Armstrong’s music. These qualities, as well as his essentially abstract ability to affect our perception of time, link him with the other artistic and scientific revolutionaries of the first half of the 20th century. Recently I had a very public fantasy (in Ken Burns’s Jazz) in which Werner Heisenberg attends a Louis Armstrong concert in Copenhagen, in 1933. Did I go too far? Actually, I didn’t go far enough.”

Part of Serge Lang‘s legacy:
the dates of his birth and death–
May 19 and Sept. 12.

That Log24 entries connect both these dates to Louis Armstrong is, of course, purely coincidental.

The image “http://www.log24.com/log/pix05B/050917-Armstrong.jpg” cannot be displayed, because it contains errors.

Why is this 

man smiling?

Tuesday, September 24, 2002

Tuesday September 24, 2002

Filed under: General — Tags: — m759 @ 11:33 pm

The Shining of Lucero

From my journal note, “Shining Forth“:

The Spanish for “Bright Star” is “Lucero.”

The Eye of the Beholder:

When you stand in the dark and look at a star a hundred light years away, not only have the retarded light waves from the star been travelling for a hundred years toward your eyes, but also advanced waves from your eyes have reached a hundred years into the past to encourage the star to shine in your direction.

— John Cramer, “The Quantum Handshake

From Broken Symmetries, by Paul Preuss, 1983:

He’d toyed with “psi” himself…. The reason he and so many other theoretical physicists were suckers for the stuff was easy to understand — for two-thirds of a century an enigma had rested at the heart of theoretical physics, a contradiction, a hard kernel of paradox….   

Peter [Slater] had never thirsted after “hidden variables” to explain what could not be pictured.  Mathematical relationships were enough to satisfy him, mere formal relationships which existed at all times, everywhere, at once.  It was a thin nectar, but he was convinced it was the nectar of the gods.

………………

Those so-called crazy psychics were too sane, that was their problem — they were too stubborn to admit that the universe was already more bizarre than anything they could imagine in their wildest dreams of wizardry. (Ch. 16)

From Secret Passages, by Paul Preuss, 1997:

Minakis caught up and walked beside him in silence, moving with easy strides over the bare ground, listening as Peter [Slater] spoke. “Delos One was ten years ago — quantum theory seemed as natural as water to me then; I could play in it without a care. If I’d had any sense of history, I would have recognized that I’d swallowed the Copenhagen interpretation whole.”

“Back then, you insisted that the quantum world is not a world at all,” Minakis prompted him. “No microworld, only mathematical descriptions.”

“Yes, I was adamant. Those who protested were naive — one has to be willing to tolerate ambiguity, even to be crazy.”

“Bohr’s words?”

“The party line. Of course Bohr did say, ‘It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we can say about nature.’ Meaning that when we start to talk what sounds like philosophy, our colleagues should rip us to pieces.” Peter smiled. “They smell my blood already.”

………………
 
Peter glanced at Minakis. “Let’s say there are indications — I have personal indications — not convincing, perhaps, but suggestive, that the quantum world penetrates the classical world deeply.” He was silent for a moment, then waved his hand at the ruins. “The world of classical physics, I mean. I suppose I’ve come to realize that the world is more than a laboratory.”

“We are standing where Apollo was born,” Minakis said. “Leto squatted just there, holding fast to a palm tree, and after nine days of labor gave birth to the god of light and music….”

From my journal note, “A Mass for Lucero“:

To Lucero, in memory of
1962 in Cuernavaca

From On Beauty, by Elaine Scarry,
Princeton University Press, 1999 —

“Homer sings of the beauty of particular things. Odysseus, washed up on shore, covered with brine, having nearly drowned, comes upon a human community and one person in particular, Nausicaa, whose beauty simply astonishes him. He has never anywhere seen a face so lovely; he has never anywhere seen any thing so lovely….

I have never laid eyes on anyone like you,
neither man nor woman…
I look at you and a sense of wonder takes me.

Wait, once I saw the like —
in Delos, beside Apollo’s altar —
the young slip of a palm-tree
springing into the light.”

From Secret Passages, by Paul Preuss, 1997:

“When we try to look inside atoms,” Peter said, “not only can we not see what’s going on, we cannot even construct a coherent picture of what’s going on.”

“If you will forgive me, Peter,” Minakis said, turning to the others. “He means that we can construct several pictures — that light and matter are waves, for example, or that light and matter are particles — but that all these pictures are inadequate. What’s left to us is the bare mathematics of quantum theory.”

…. “Whatever the really real world is like, my friend, it is not what you might imagine.”

………………

 
Talking physics, Peter tended to bluntness. “Tell me more about this real world you imagine but can’t describe.”

Minakis turned away from the view of the sunset. “Are you familiar with John Cramer’s transactional interpretation of quantum mechanics?”

“No I’m not.”

………………

“Read Cramer. I’ll give you his papers. Then we can talk.” 

 From John Cramer, “The Quantum Handshake“:

Advanced waves could perhaps, under the right circumstances, lead to “ansible-type” FTL communication favored by Le Guin and Card…. 

For more on Le Guin and Card, see my journal notes below.

For more on the meaning of “lucero,” see the Wallace Stevens poem “Martial Cadenza.”

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