Stericated 7-simplex
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In seven-dimensional geometry, a stericated 7-simplex is a convex uniform 7-polytope with 4th order Truncation (geometry), truncations (sterication) of the regular 7-simplex. There are 14 unique sterication for the 7-simplex with permutations of truncations, cantellations, and runcinations.


Stericated 7-simplex


Alternate names

* Small cellated octaexon (acronym: sco) (Jonathan Bowers)


Coordinates

The vertices of the ''stericated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,0,1,1,1,1,2). This construction is based on Facet (geometry), facets of the stericated 8-orthoplex.


Images


Bistericated 7-simplex


Alternate names

* Small bicellated hexadecaexon (acronym: sabach) (Jonathan Bowers)


Coordinates

The vertices of the ''bistericated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,1,1,1,1,2,2). This construction is based on Facet (geometry), facets of the bistericated 8-orthoplex.


Images


Steritruncated 7-simplex


Alternate names

* Cellitruncated octaexon (acronym: cato) (Jonathan Bowers)


Coordinates

The vertices of the ''steritruncated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,0,1,1,1,2,3). This construction is based on Facet (geometry), facets of the steritruncated 8-orthoplex.


Images


Bisteritruncated 7-simplex


Alternate names

* Bicellitruncated octaexon (acronym: bacto) (Jonathan Bowers)


Coordinates

The vertices of the ''bisteritruncated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,1,1,1,2,3,3). This construction is based on Facet (geometry), facets of the bisteritruncated 8-orthoplex.


Images


Stericantellated 7-simplex


Alternate names

* Cellirhombated octaexon (acronym: caro) (Jonathan Bowers)


Coordinates

The vertices of the ''stericantellated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,0,1,1,2,2,3). This construction is based on Facet (geometry), facets of the stericantellated 8-orthoplex.


Images


Bistericantellated 7-simplex


Alternate names

* Bicellirhombihexadecaexon (acronym: bacroh) (Jonathan Bowers)


Coordinates

The vertices of the ''bistericantellated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,1,1,2,2,3,3). This construction is based on Facet (geometry), facets of the stericantellated 8-orthoplex.


Images


Stericantitruncated 7-simplex


Alternate names

* Celligreatorhombated octaexon (acronym: cagro) (Jonathan Bowers)


Coordinates

The vertices of the ''stericantitruncated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,0,1,1,2,3,4). This construction is based on Facet (geometry), facets of the stericantitruncated 8-orthoplex.


Images


Bistericantitruncated 7-simplex


Alternate names

* Bicelligreatorhombated octaexon (acronym: bacogro) (Jonathan Bowers)


Coordinates

The vertices of the ''bistericantitruncated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,1,1,2,3,4,4). This construction is based on Facet (geometry), facets of the bistericantitruncated 8-orthoplex.


Images


Steriruncinated 7-simplex


Alternate names

* Celliprismated octaexon (acronym: cepo) (Jonathan Bowers)


Coordinates

The vertices of the ''steriruncinated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,0,1,2,2,2,3). This construction is based on Facet (geometry), facets of the steriruncinated 8-orthoplex.


Images


Steriruncitruncated 7-simplex


Alternate names

* Celliprismatotruncated octaexon (acronym: capto) (Jonathan Bowers)


Coordinates

The vertices of the ''steriruncitruncated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,0,1,2,2,3,4). This construction is based on Facet (geometry), facets of the steriruncitruncated 8-orthoplex.


Images


Steriruncicantellated 7-simplex


Alternate names

* Celliprismatorhombated octaexon (acronym: capro) (Jonathan Bowers)


Coordinates

The vertices of the ''steriruncicantellated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,0,1,2,3,3,4). This construction is based on Facet (geometry), facets of the steriruncicantellated 8-orthoplex.


Images


Bisteriruncitruncated 7-simplex


Alternate names

* Bicelliprismatotruncated hexadecaexon (acronym: bicpath) (Jonathan Bowers)


Coordinates

The vertices of the ''bisteriruncitruncated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,1,2,2,3,4,4). This construction is based on Facet (geometry), facets of the bisteriruncitruncated 8-orthoplex.


Images


Steriruncicantitruncated 7-simplex


Alternate names

* Great cellated octaexon (acronym: gecco) (Jonathan Bowers)


Coordinates

The vertices of the ''steriruncicantitruncated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,0,1,2,3,4,5). This construction is based on Facet (geometry), facets of the steriruncicantitruncated 8-orthoplex.


Images


Bisteriruncicantitruncated 7-simplex


Alternate names

* Great bicellated hexadecaexon (gabach) (Jonathan Bowers) Klitizing, (o3x3x3x3x3x3o - gabach)


Coordinates

The vertices of the ''bisteriruncicantitruncated 7-simplex'' can be most simply positioned in 8-space as permutations of (0,0,1,2,3,4,5,5). This construction is based on Facet (geometry), facets of the bisteriruncicantitruncated 8-orthoplex.


Images


Related polytopes

This polytope is one of 71 uniform 7-polytopes with A7 symmetry.


Notes


References

* Harold Scott MacDonald Coxeter, H.S.M. Coxeter: ** H.S.M. Coxeter, ''Regular Polytopes'', 3rd Edition, Dover New York, 1973 ** Kaleidoscopes: Selected Writings of H.S.M. Coxeter, edited by F. Arthur Sherk, Peter McMullen, Anthony C. Thompson, Asia Ivic Weiss, Wiley-Interscience Publication, 1995
wiley.com
*** (Paper 22) H.S.M. Coxeter, ''Regular and Semi Regular Polytopes I'', [Math. Zeit. 46 (1940) 380–407, MR 2,10] *** (Paper 23) H.S.M. Coxeter, ''Regular and Semi-Regular Polytopes II'', [Math. Zeit. 188 (1985) 559-591] *** (Paper 24) H.S.M. Coxeter, ''Regular and Semi-Regular Polytopes III'', [Math. Zeit. 200 (1988) 3-45] * Norman Johnson (mathematician), Norman Johnson ''Uniform Polytopes'', Manuscript (1991) ** N.W. Johnson: ''The Theory of Uniform Polytopes and Honeycombs'', Ph.D. * x3o3o3o3x3o3o - sco, o3x3o3o3o3x3o - sabach, x3x3o3o3x3o3o - cato, o3x3x3o3o3x3o - bacto, x3o3x3o3x3o3o - caro, o3x3o3x3o3x3o - bacroh, x3x3x3o3x3o3o - cagro, o3x3x3x3o3x3o - bacogro, x3o3o3x3x3o3o - cepo, x3x3x3o3x3o3o - capto, x3o3x3x3x3o3o - capro, o3x3x3o3x3x3o - bicpath, x3x3x3x3x3o3o - gecco, o3x3x3x3x3x3o - gabach


External links


Polytopes of Various Dimensions


{{Polytopes 7-polytopes