"The reader can construct her own cube . . . ."
Saturday, January 21, 2023
Saturday, August 1, 2020
A Cross for von Sydow
See also Joseph Malkevitch's memorial essay on Richard K. Guy,
who reportedly died on March 9, 2020, and Log24 on that date.
Comments Off on A Cross for von Sydow
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.
Comments Off on Labeling a Cuboctahedron
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.
Comments Off on “Archimedes at Hiroshima” Continues.
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 —
Comments Off on The Bucharest Wheel
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:
Comments Off on The Bucharest Cross