Some notes suggested by recent posts now also tagged Three Days —
Sporkin in 1975, according to his obituary in this morning’s print edition
of The New York Times —
He reportedly died at 88 of natural causes on Monday, March 23.
Wednesday, March 25, 2020
Sunday in the Park
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Tuesday, March 24, 2020
No Ordinary Venue
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Sunday, March 22, 2020
Three Days of the Breakthrough Institute
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Friday, March 13, 2020
Missa Brevis
In memory of a composer who reportedly died on Wednesday,
March 11, 2020 —
From a synchronology check —
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Wednesday, March 11, 2020
Hunger Game for a “Pop Culture Star”
"A hunger to be more serious"
— Arts & Letters Daily on the late
George Steiner, who reportedly
died on February 3, 2020
The New York Times on a Sunday death —
A Midrash —
Serious —
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Visualizing Mathieu Group Generators
Update of March 17, 2020 —
The graphic images illustrate nicely Conder's six 4-cycles, but
their relationship, if any, to his eight 2-cycles is a mystery —
The Conder paper is at
https://core.ac.uk/download/pdf/82622574.pdf.
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Tuesday, March 10, 2020
Labeling a Cuboctahedron
The above arrangement of graphic images on cube faces is purely
decorative and static, and of little mathematical interest.
(A less static, but structurally chaotic, artifact might be made by
pasting the above 24 graphic images in the "Cosets in S4" picture
above onto the 24 faces of a 2x2x2 Rubik cube. This suggests the
reflection below on the poet Wallace Stevens, whose "Connoisseur
of Chaos" first appeared on page 90 of Twentieth Century Verse ,
Numbers 12-13, October 1938.)
If mathematically interesting permutations of the graphic images
are to be done, the images should be imagined as situated on
parallel planes, as in the permutahedron below —
Click the above permutahedron for an analysis of its structure.
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Monday, March 9, 2020
“Archimedes at Hiroshima” Continues.
The title is from a post of January 10, 2019.
A figure from this journal on June 1, 2019 —
The following figure may help relate labelings of the
truncated octahedron ("permutahedron") to labelings
of its fellow Archimedean solid, the cuboctahedron.
See as well other posts tagged Aitchison.
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The Bucharest Wheel
From the Bucharest author in last night's 12:12 AM post —
From this journal on the above date, Feb. 16, 2011 —
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The Bucharest Cross
For fans of "The Zero Theorem" —
The 24 permutations of S4 arranged on a cube
by Cristi Stoica of Bucharest at
http://www.unitaryflow.com/2009/06/polyhedra-and-groups.html:
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