Log24

Thursday, May 31, 2018

Schattenspiel

Filed under: General — m759 @ 11:21 pm

An image from a post of May 25

Related material suggested by a question posed today at Instagram
by Marrific to her fellow photographers — "Do you ever wonder
what is the story of people you accidentally shot?"

The question accompanied a photo of a Manhattan street corner.

A Google Street Scene photo at the same location

Related art —

See also Steppenwolf in this journal.

Eightfold Suffering:

Filed under: General,Geometry — Tags: — m759 @ 9:23 pm

A New, Improved Version of  Quantum Suffering !

Background for group actions on the eightfold cube

See also other posts now tagged Quantum Suffering 
as well as — related to the image above of the Great Wall

Myspace China.

Quantum Suffering

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

See as well, in this  journal, Koestler and Darkness at Noon .

Hart the Knife*

Filed under: General — m759 @ 11:07 am

For Spaceballs  fans . . .

A web page from the father of Vi Hart, co-author of the
2014 quaternion-model article cited in the previous post:

* The title was suggested by the following video

Quaternion Group Models

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

2011 —

 

2014 —

 

     See also other Log24 posts on quaternion group models.

Wednesday, May 30, 2018

Professional Style

Filed under: General — m759 @ 11:19 am

For an example of the admirable Schwartz style, see a recent letter.

Tuesday, May 29, 2018

Her Fair Lady

Filed under: General — m759 @ 9:00 pm

News from this year's Eliza Doolittle Day

See also a Log24 post in memory of Lillian Vernon . . .

The Schwartz Meme

Filed under: General — Tags: — m759 @ 1:33 pm

IMAGE- The matrix Omega from notes of Richard Evan Schwartz. See also earlier versions (1977-1979) by Steven H. Cullinane.

Aficionados of the preposterous joke 
(see yesterday's post Epstein on Art
may consult a Google Image Search for
Schwartz Meme.

I prefer Schwartz même —

The Seventh Function . . .

Filed under: General — Tags: , — m759 @ 3:33 am

. . . Meets the Seventh Seal

See also posts mentioning Barthes in this journal.

Monday, May 28, 2018

Figaro (by Cartier)

Filed under: General — Tags: — m759 @ 7:17 pm

Related material from Log24 —

Posts tagged Cartier's Groundhog Day.

Epstein on Art

Filed under: General — Tags: — m759 @ 2:16 pm

Joseph Epstein in the online Weekly Standard
on May 24, 2018, at 3:03 PM —

Hilton Kramer, in a powerful essay called “Revenge of the Philistines,” praised Wolfe’s account of the sociology of the visual art of the time. On the comedy inherent in the subject, he noted, Wolfe “is illuminating and often hilarious.” Yet, when it came to the analysis of ideas, Kramer felt, “when it comes down to actual works of art and the thinking they both embody and inspire, Wolfe is hopelessly out of his depth . . . and, no doubt, beyond his true interests.” He faulted Wolfe for his inability to understand the historical context of the contemporary situation in art or how we have come to where we are in a way that carries us well beyond “the drawing-room comedy of The Painted Word .” Kramer concluded: “It is this fundamental incomprehension of the role of criticism in the life of art—this enmity to the function of theory in the creation of culture—that identifies The Painted Word , despite its knowingness and its fun, as a philistine utterance, an act of revenge against a quality of mind it cannot begin to encompass and must therefore treat as a preposterous joke.”

For Kramer in greater depth, see an online biography.

Skewers

Filed under: General,Geometry — Tags: — m759 @ 1:16 pm

A piece co-written by Ivanov, the author noted in the previous post, was cited
in my "Geometry of the 4×4 Square."

Also cited there —  A paper by Pasini and Van Maldeghem that mentions
the Klein quadric.

Those sources suggested a search —

The link is to some geometry recently described by Tabachnikov
that seems rather elegant:

For another, more direct, connection to the geometry of the 4×4 square,
see Richard Evan Schwartz in this  journal.

This same Schwartz appears also in the above Tabachnikov paper:

Sunday, May 27, 2018

Heptagons, Quilts, Mathieu Groups

Filed under: General,Geometry — Tags: — m759 @ 1:02 pm

The phrase "ghostly heptagons" appears in A Piece of Justice , a 1995 novel 
by Jill Paton Walsh that features some fictional politically correct mathematics.
(See the previous post.)

Related material from a Google search today —

The Ivanov book is new:

“What Interests Me”

Filed under: General,Geometry — m759 @ 12:08 pm

See also a Log24 search for A Piece of Justice .

Saturday, May 26, 2018

#HimToo

Filed under: General — m759 @ 1:38 pm

Friday, May 25, 2018

Demolished Update

Filed under: General — Tags: — m759 @ 4:00 pm

See also The Demolished Man  in this journal.

Dirty Dating

Filed under: General — Tags: — m759 @ 2:56 pm

A background check of a date from the previous post —
March 12, 2013 — yields . . .

A Wikipedia check of Porter yields . . .

This  date from Wikimedia — 3 March 2007 — leads to
a post in memory of Myer Feldman, presidential advisor
and theatrical producer.

"It's been dirty for dirty
Down the line . . ."

— Joni Mitchell,
"For the Roses" album (1972)

Grid Design

Filed under: General — Tags: , — m759 @ 2:00 pm

Click the grid for the tag 5×5 in this journal.

A related book —

See also the previous post, Bucharest Semiotics.

Thursday, May 24, 2018

Bucharest Semiotics

Filed under: General — m759 @ 11:00 pm

See Solomon Marcus in this journal.

Related art —

 

Related fictions: The Seventh Function of Language  (2017)
and Lexicon  (2013).  I prefer Lexicon .

Part and Hole

Filed under: General — Tags: , — m759 @ 2:17 am

See also other posts now tagged Hole.

The above review of a Feb. 13, 2018, post was suggested by the
publication date below . . .

. . .  and by today's Arts & Letters Daily  item that linked to it —

Note, in Album , the activities of
Barthes in Bucharest during 1948.

From a May 20 Log24 post, "A Cryptic Message" —

"Every Love Story Is a Ghost Story." — Title of a book by D.T. Max

Wednesday, May 23, 2018

Page 162

Filed under: General — Tags: — m759 @ 3:33 pm

Hole

Filed under: General — Tags: — m759 @ 2:10 am

See as well the previous post and a search here for McGrath + 162.

Tuesday, May 22, 2018

Annals of Entertainment

Filed under: General — Tags: — m759 @ 1:28 pm

Sounds like a film set for Affleck

Spotlight

Filed under: General — m759 @ 11:15 am

"What could go wrong?"  See . . .

The producers of "Spotlight," a 2015 film about The Boston Globe

Doppelgänger

Filed under: General — Tags: , — m759 @ 3:06 am

The previous post suggests a media review.

Doppelgangers from the wonderful world of entertainment —

   

We have a clip.” — Kalle  (Kristen Wiig on SNL)

Monday, May 21, 2018

Crux

Filed under: General — Tags: , , — m759 @ 5:24 pm

Illustration for a Warren Times Observer  story of May 12, 2018 —

Related literary background —

Iacta est.

"That's the crux of it, brother."
— William Monahan's "Mojave" script

See as well a related post on
Sunset and Selma, LA.

Late Great

Filed under: General — m759 @ 3:23 pm

Irony. Get it?

Sunday, May 20, 2018

Maniac Strudel

Filed under: General — Tags: — m759 @ 11:31 pm

(In memory of Will Alsop and Bill Gold)

Related material:  Alice, a Log24 post of Nov. 12  (11/12),  2017.

Intrigue, Romance, Drama

Filed under: General — Tags: — m759 @ 11:12 pm

Sometimes Function Follows Form

Filed under: General,Geometry — Tags: — m759 @ 9:45 pm

Function —

Follows —

Form —

Related material: Eight years ago today, Eliza Doolittle Day 2010.

Not So Cryptic

Filed under: General,Geometry — m759 @ 2:56 pm

From the date of the New York Times  James Bond video
referenced in the previous post, "A Cryptic Message" —

A Cryptic Message

Filed under: General — Tags: — m759 @ 2:50 pm

Some Style

Filed under: General,Geometry — Tags: — m759 @ 1:03 am

Dialogue from the 1984 fourth draft of the script, as found on the Web,
for "Back to the Future" (1985) (apparently some changes were made
in the filming) —

A sort of "flux capacitor" (see previous post) —

The Rolls-Royce Cullinan

 plus "e" for Einstein 

Saturday, May 19, 2018

Flux Capacitor

Filed under: General,Geometry — Tags: , , , — m759 @ 4:13 pm

For Tom Hanks and Dan Brown —

Symbologist Robert Langdon views a corner of Solomon's Cube

From "Raiders of the Lost Images" —

"The cube shape of the lost Mother Box,
also known as the Change Engine,
is shared by the Stone in a novel by
Charles Williams, Many Dimensions .
See the Solomon's Cube webpage."

See as well a Google search for flux philosophy
https://www.google.com/search?q=flux+philosophy.

Uh-Oh.

Filed under: General — Tags: — m759 @ 2:27 am

From the linked website —

The circle-in-a-triangle symbol is known as "the triangle of art" —

See as well a post of Feb. 27, 2018:  Raiders of the Lost Images.

Friday, May 18, 2018

The Goods

Filed under: General — m759 @ 1:33 pm

An April 25, 2015, Internet review of "The Dead Pool" (1988) —

"The biggest problem with this movie is the fact that 
we have Liam Neeson and Clint Eastwood on the screen 
at the same time and they are not facing off 
in a battle of badass action stars. 
Neeson wasn’t really considered to be much more than 
a supporting character at this point in his career, 
but his recent action run proves that he is the goods."

— Geno McGahee

Click to enlarge the above IMDb screenshot.

See also a related May 16 review from The Boston Globe .

I prefer the remarks of J. G. Ballard linked to here on May 11.

Central Square

Filed under: General — Tags: — m759 @ 11:54 am

This  journal 10 years ago today  had a link to a post on
Tom Wolfe's "Sorry, but Your Soul Just Died."

Thursday, May 17, 2018

Leap

Filed under: General — Tags: , — m759 @ 9:45 pm

Quoted here on May 5, 2018

" Lying at the axis of everything, zero is both real and imaginary. Lovelace was fascinated by zero; as was Gottfried Leibniz, for whom, like mathematics itself, it had a spiritual dimension. It was this that let him to imagine the binary numbers that now lie at the heart of computers: 'the creation of all things out of nothing through God's omnipotence, it might be said that nothing is a better analogy to, or even demonstration of such creation than the origin of numbers as here represented, using only unity and zero or nothing.' He also wrote, 'The imaginary number is a fine and wonderful recourse of the divine spirit, almost an amphibian between being and nonbeing.' "

— A footnote from page 229 of Sydney Padua's
    April 21, 2015, book on Lovelace and Babbage

The page number  229 may also be interpreted, cabalistically,
as the date  2/29, Leap Day.

See Leap Day 2016 among the posts tagged Mind Spider.

Speak, Memory

Filed under: General — Tags: — m759 @ 6:29 pm

On the film "Anna" in the previous post

See also the above world premiere date in the posts of October 2013
esp. the post Conundrum.

Related material — An early scene in "Mindscape" . . .

. . . and "The Abacus Conundrum" in this journal.

DATA

Filed under: General — Tags: — m759 @ 5:17 pm

Quoted here on May 7, 2018

Novelist George Eliot and programming pioneer Ada Lovelace —

PBS last night —

Trailer for last night's PBS program on artificial intelligence —

Piano roll for "I am sixteen going on seventeen" (see previous post) —

From yesterday evening's "Strong Women" post

"It's been dirty for dirty
Down the line . . ."

— Joni Mitchell,
"For the Roses" album (1972)

"… for the roses
Had the look of flowers that are looked at.”

— T. S. Eliot, Four Quartets

May 17

Filed under: General — Tags: — m759 @ 3:45 pm

"Well, she was just 17 …" — Song lyric

See as well, from last Christmas Eve, Piano Roll.

Wednesday, May 16, 2018

Strong Women

Filed under: General — Tags: — m759 @ 7:50 pm

Review

Filed under: General — Tags: , — m759 @ 5:52 pm

The title of the previous post, "Church and Temple," together
with today's online New York Times  obituaries for singer 
Lara Saint Paul (d. May 8) and playwright Leah Rose Napolin
(d. May 13), suggests a review

See as well a Log24 search for Isaac Singer.

Church and Temple

Filed under: General — Tags: , , , — m759 @ 10:48 am

Same Old Story

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

. . . as time goes by.

Tuesday, May 15, 2018

Space Revisited

Filed under: General — Tags: , — m759 @ 11:32 am

"Well, let's see now "

— Tom Wolfe, July 18, 2009

Monday, May 14, 2018

Space

Filed under: General,Geometry — Tags: , — m759 @ 10:30 pm

"A generation lost in space" — Don McLean

See as well Varignon in the previous post.

Logos at Harvard

Filed under: General,Geometry — Tags: , , — m759 @ 3:01 pm

In 2013, Harvard University Press changed its logo to an abstract "H."

Harvard University Press Logo, Before and After

Both logos now accompany a Harvard video first published in 2012,
"The World of Mathematical Reality." 

In the video, author Paul Lockhart discusses Varignon's theorem
without naming Varignon (1654-1722) . . .

Paul Lockhart on geometry

A related view of "mathematical reality" —

Note the resemblance to Plato's Diamond.

Blackboard Jungle continues . . .

Filed under: General — Tags: — m759 @ 1:42 pm

… from previous posts on Paul Lockhart.

For more on the new logo of the AMS as a symbol of
politically correct mediocrity, see a post of Jan. 10, 2018.

To the Finland Station

Filed under: General — m759 @ 11:39 am

See also Museum Quality (Jan. 13, 2014).

Sunday, May 13, 2018

Noel

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

Wikipedia

"Robert Noel Hall (December 25, 1919 – November 7, 2016)
was an American engineer and applied physicist."

The New York Times  on May 10, 2018

"A product of his inventive labor can also be found
in most kitchens nowadays: the microwave oven.

Yet for all the widespread familiarity of what Dr. Hall wrought
as a remarkably ingenious physicist, his death, at 96,
on Nov. 7, 2016, gained little notice."

A fictional kitchen —

170703-The_Forger-Christopher_Plummer-2015-500w.jpg (500×336)

In memoriam:  Kindergarten Relativity .

 

Reflection Group

Filed under: General — m759 @ 2:08 pm

"The moral of this story,
it's simple but it's true:
Hey, the stars might lie,
but the numbers never do."

— Mary Chapin Carpenter

May Tricks

Filed under: General — m759 @ 1:18 pm

Saturday, May 12, 2018

The McLean Awakening

Filed under: General — Tags: — m759 @ 4:14 pm

"Oh, and there we were all in one place
A generation lost in space"

— "American Pie" by Don McLean

In Memoriam

Filed under: General — m759 @ 9:04 am

"It is with tremendous sadness that we inform you
that Feral House founder and publisher, Adam Parfrey 
passed away Thursday, May 10, 2018."

Facebook early on Friday morning (12:41 AM)

This  journal early on Thursday  morning (12:25 AM) —

"And they were singin' . . ."

Christian Bale and Amy Adams in 'American Hustle'

Midrash added today —

And singin', and singin' . . .

Friday, May 11, 2018

A Pure Geometry

Filed under: General,Geometry — m759 @ 9:00 pm

From posts tagged Modernism

Sunday, December 10, 2006

m759 @ 9:00 PM

A Miniature Rosetta Stone:

The 3x3 grid

“Function defined form, expressed in a pure geometry
that the eye could easily grasp in its entirety.”

– J. G. Ballard on Modernism
(The Guardian , March 20, 2006)

“The greatest obstacle to discovery is not ignorance –
it is the illusion of knowledge.”

— Daniel J. Boorstin,
Librarian of Congress, quoted in Beyond Geometry

On this date 19 years ago…

Filed under: General,Geometry — Tags: — m759 @ 2:35 pm

See as well other posts tagged Modernism.

Annals of Modernism

Filed under: General — Tags: — m759 @ 1:50 pm

Detail:

Thursday, May 10, 2018

Backstory for Eden*

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

* I.e., Hemingway's novel The Garden of Eden.
  See also Northrop Frye and "interpenetration"
  in this journal and a University of Montana master's
  thesis from 1994 on the Hemingway novel,
  "And a river went out of Eden," by Howard A. Schmid.

  See as well remarks by Stanley Fish quoted here on May 7.

The Forbidden Garden

Filed under: General — Tags: — m759 @ 11:17 am

Nature  yesterday —

"To synchronize participant activity with experimental operation,
the Bell tests were scheduled to take place on a single day,
Wednesday 30 November 2016."

— "Challenging local realism with human choices
      The BIG Bell Test Collaboration"

This  journal on that date, 30 November 2016 —

Cf. other posts tagged Lumber Room.

“For Ten Years, We’ve Been On Our Own…”

Filed under: General — m759 @ 12:00 am

See also May 9, 2008.

Update of 12:25 AM ET —

"And they were singin' . . ."

Christian Bale and Amy Adams in 'American Hustle'

Wednesday, May 9, 2018

Quantum Times from Saint Anselm

Filed under: General — m759 @ 10:42 pm

"This month also includes the debut of page numbers!!!"

— Ian T. Durham, Saint Anselm College, July 2006

See as well a July 2006 discussion of page numbers here .

On April 2, 2005 . . .

Filed under: General — m759 @ 11:19 am

Nostalgie de la Boue

 "Odd-numbered (recto) pages
read from the gutter (inside margin)
towards the fore-edge;
even-numbered (verso) pages
read towards the gutter."

— From The Golden Compasses 
     "Appendix 8: Impositions and
     Folding Schemes" (page 526).

For Wrinkle in Time  fans —

Enthusiasts of la boue  may consult Log24 posts about the above date.

From a Log24 post of April 2, 2005

Once Upon a . . .

Filed under: General,Geometry — Tags: — m759 @ 10:13 am

Click the text below for a slideshow.

Monday, January 8, 2018

Time

Filed under: Uncategorized — m759 @ 12:00 AM 

Tuesday, May 8, 2018

The Museum of Slow Art

Filed under: General — Tags: — m759 @ 10:29 pm

From April 2008 —

From the Sketchbook page of next Sunday's  New York Times Book Review 

Backstory —

Wall

Filed under: General,Geometry — Tags: — m759 @ 1:29 pm

The glitter-ball-like image discussed in the previous post
is of an artwork by Olafur Eliasson.

See the kaleidoscopic  section of his website.

From that section —

Eliasson, 'When Love Is Not Enough' wall, 2007

Related art in keeping with the theme of last night's Met Gala —

See also my 2005 webpage Kaleidoscope Puzzle.

Monday, May 7, 2018

Glitter Ball for Cannes

Filed under: General — Tags: , — m759 @ 9:20 pm

In memory of a French film publicist who worked with Clint Eastwood
in 1971 on the release of "The Beguiled" —

From a  New York Times  graphic review dated Sept. 16, 2016 —

It's Chapter 1 of George Eliot's "Middlemarch."

Dorothea Brooke, young and brilliant, filled with passion
no one needs, is beguiled by some gemstones . . . .

The characters, moving through the book,
glitter as they turn their different facets toward us . . . .

Cf. a  glitter-ball-like image in today's New York Times  philosophy column 
"The Stone" —  a column named for the legendary philosophers' stone.

The publicist, Pierre Rissient, reportedly died early Sunday.

See as well Duelle  in this  journal.

Data

Filed under: General — Tags: , — m759 @ 10:32 am

(Continued from yesterday's Sunday School Lesson Plan for Peculiar Children)

Novelist George Eliot and programming pioneer Ada Lovelace —

For an image that suggests a resurrected multifaceted 
(specifically, 759-faceted) Osterman Omega (as in Sunday's afternoon
Log24 post
), behold  a photo from today's NY Times  philosophy
column "The Stone" that was reproduced here in today's previous post

For a New York Times  view of George Eliot data, see a Log24 post 
of September 20, 2016, on the diamond theorem as the Middlemarch
"key to all mythologies."

Fish Babel

Filed under: General,Geometry — Tags: , , — m759 @ 10:00 am

Stanley Fish in the online New York Times  today —

". . . Because it is an article of their faith that politics are bad
and the unmediated encounter with data is good,
internet prophets will fail to see the political implications
of what they are trying to do, for in their eyes political implications
are what they are doing away with.

Indeed, their deepest claim — so deep that they are largely
unaware of it — is that politics can be eliminated. They don’t
regard politics as an unavoidable feature of mortal life but as
an unhappy consequence of the secular equivalent of the
Tower of Babel: too many languages, too many points of view.
Politics (faction and difference) will just wither away when
the defect that generates it (distorted communication) has
been eliminated by unmodified data circulated freely among
free and equal consumers; everyone will be on the same page,
reading from the same script and apprehending the same
universal meanings. Back to Eden!"

The final page, 759, of the Harry Potter saga —

"Talk about magical thinking!" — Fish, ibidem .

See also the above Harry Potter page 
in this  journal Sunday morning.

Sunday, May 6, 2018

The Osterman Omega

Filed under: General,Geometry — Tags: , — m759 @ 5:01 pm

From "The Osterman Weekend" (1983) —

Counting symmetries of the R. T. Curtis Omega:

An Illustration from Shakespeare's birthday

Counting symmetries with the orbit-stabilizer theorem

Sermon

Filed under: General — m759 @ 10:00 am

From The Rockburne Files  —

Sunday School Lesson Plan …

Filed under: General — Tags: — m759 @ 8:00 am

For Peculiar Children

Category

Filed under: General — Tags: — m759 @ 7:37 am

"But perhaps there’s more to the [Harry] Potter books
than the term 'children’s literature' lets on —
indeed, so much so that the category no longer applies."

— Maria Devlin McNair in the online Boston Globe  yesterday

Saturday, May 5, 2018

Galois Imaginary

Filed under: General,Geometry — m759 @ 9:00 pm

" Lying at the axis of everything, zero is both real and imaginary. Lovelace was fascinated by zero; as was Gottfried Leibniz, for whom, like mathematics itself, it had a spiritual dimension. It was this that let him to imagine the binary numbers that now lie at the heart of computers: 'the creation of all things out of nothing through God's omnipotence, it might be said that nothing is a better analogy to, or even demonstration of such creation than the origin of numbers as here represented, using only unity and zero or nothing.' He also wrote, 'The imaginary number is a fine and wonderful recourse of the divine spirit, almost an amphibian between being and nonbeing.' "

— A footnote from page 229 of Sydney Padua's
    April 21, 2015, book on Lovelace and Babbage

A related passage —

From The French Mathematician
by Tom Petsinis (Nov. 30, 1998) —

0

I had foreseen it all in precise detail.
One step led inevitably to the next,
like the proof of a shining theorem,
down to the conclusive shot that still echoes
through time and space. 
Facedown in the damp pine needles,
I embraced that fatal sphere
with my whole body. Dreams, memories,
even the mathematics I had cherished
and set down in my last will and testament–
all receded. I am reduced to
a singular point; in an instant
I am transformed to .

i = an imaginary being

Here, on this complex space,
i  am no longer the impetuous youth
who wanted to change the world
first with a formula and then with a flame.
Having learned the meaning of infinite patience,
i  now rise to the text whenever anyone reads 
about Evariste Galois, preferring to remain 
just below the surface, 
like a goldfish nibbling the fringe of a floating leaf.
Ink is more mythical than blood
(unless some ancient poet slit his 
vein and wrote an epic in red):
The text is a two-way mirror 
that allows me to look into
the life and times of the reader. 
Who knows, someday i  may rise
to a text that will compel me 
to push through to the other side.
Do you want proof that i  exist? Where am ?
Beneath every word, behind each letter, 
on the side of a period that will never see the light.

Hume, Parfit. Parfit, Hume.

Filed under: General — Tags: — m759 @ 7:11 pm

 "And were all my perceptions removed by death,
and could I neither think, nor feel, nor see, nor love,
nor hate, after the dissolution of my body, I should
be entirely annihilated, nor do I conceive what is
further requisite to make me a perfect nonentity."

— Book I, Part IV, Section vi  of  
    A Treatise of Human Nature

— Detail from the ending of Philip Pullman's
     graphic novel "Mystery of the Ghost Ship"

Plugin

Filed under: General — Tags: , , — m759 @ 6:45 pm

Art enthusiast Phyllis Tuchman in The New York Times  yesterday —

"Ms. Rockburne's understated work plugged into
the prevailing Minimalist aesthetic of the day . . . ."

This was quoted here yesterday, followed by a visual flash drive
of sorts —

Another Parisian flash drive of sorts —

Friday, May 4, 2018

Art & Design

Filed under: General,Geometry — m759 @ 4:00 pm

http://www.log24.com/log/pix11/110219-SquareRootQuaternion.jpg

A star figure and the Galois quaternion.

The square root of the former is the latter.

See also a passage quoted here a year ago today
(May the Fourth, "Star Wars Day") —

Cube symmetry subgroup of order 8 from 'Geometry and Symmetry,' Paul B. Yale, 1968, p.21

The Tuchman Radical*

Filed under: General,Geometry — Tags: , , — m759 @ 3:33 pm

Two excerpts from today's Art & Design section of
The New York Times  —

For the deplorables of France —

For further remarks on l'ordre , see
other posts tagged Galois's Space
( tag=galoiss-space).

* The radical of the title is Évariste Galois (1811-1832).

Entropy

Filed under: General,Geometry — m759 @ 2:00 pm

A more serious note in memory of Anatole Katok:

"Entropy measures the unpredictability
of a system that evolves over time."

Alex Wright, BULLETIN (New Series)
OF THE AMERICAN MATHEMATICAL SOCIETY

Volume 53, Number 1, January 2016, Pages 41–56

http://dx.doi.org/10.1090/bull/1513

Article electronically published on September 8, 2015:

FROM RATIONAL BILLIARDS
TO DYNAMICS ON MODULI SPACES

Abstract:

"This short expository note gives an elementary
introduction to the study of dynamics on certain
moduli spaces and, in particular, the recent 
breakthrough result of Eskin, Mirzakhani,
and Mohammadi. We also discuss the context
and applications of this result, and its connections
to other areas of mathematics, such as algebraic
geometry, Teichmüller theory, and ergodic theory
on homogeneous spaces."

See also the lives of Ratner and Mirzakhani.

Thursday, May 3, 2018

A Walpurgisnacht Death for Dan Brown

Filed under: General — m759 @ 11:30 pm

In memory of Anatole Katok, who reportedly died on Walpurgisnacht,
two readings from a source cited by Dan Brown in his recent novel
Origin

Brown is reportedly a graduate of Phillips Exeter Academy and
of Amherst College.

Those associated with institutions that are more respectable
may prefer Katok on entropy.

Multifaceted . . .

Filed under: General — Tags: , — m759 @ 2:56 pm

. . . Con Figuras de Espantar

"He Who Searches  is multifaceted in structure …"

Publisher's description of a Helen Lane translation
of "Como en la Guerra ," by Luisa Valenzuela
Also by Valenzuela —

Related material — An obituary from The Boston Globe  today
on the April 5 death of Borinsky's translator, and . . .

"He Who Searches" may consult also posts tagged Date.

Wednesday, May 2, 2018

Galois’s Space

Filed under: General,Geometry — Tags: , , — m759 @ 2:20 pm

(A sequel to Foster's Space and Sawyer's Space)

See posts now tagged Galois's Space.

Tuesday, May 1, 2018

Wake

Filed under: General — Tags: , — m759 @ 2:29 pm

Remarks on space from 1998 by sci-fi author Robert J. Sawyer quoted
here on Sunday (see the tag "Sawyer's Space") suggest a review of
rather similar remarks on space from 1977 by sci-fi author M. A. Foster
(see the tag "Foster's Space"):

Quoted here on September 26, 2012

"All she had to do was kick off and flow."

— The Gameplayers of Zan

"I'se so silly to be flowing but I no canna stay."

— Finnegans Wake

Another work by Sawyer —

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