Realizations of abstract regular polytopes from a representation theoretic view
Realizations of abstract regular polytopes from a representation theoretic view
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从表示理论的角度实现抽象正多胞形
DOI:
10.1007/s00010-016-0434-y
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发表时间:
2016
影响因子:
0.8
通讯作者:
Frieder Ladisch
中科院分区:
文献类型:
--
作者:
Frieder Ladisch
Peter McMullen has developed a theory of realizations of abstract regular polytopes, and has shown that the realizations up to congruence form a pointed convex cone which is the direct product of certain irreducible subcones. We show that each of these subcones is isomorphic to a set of positive semi-definite hermitian matrices of dimensionmover either the real numbers, the complex numbers or the quaternions. In particular, we correct an erroneous computation of the dimension of these subcones by McMullen and Monson. We show that the automorphism group of an abstract regular polytope can have an irreducible characterwithand with arbitrarily large essential Wythoff dimension. This gives counterexamples to a result of Herman and Monson, which was derived from the erroneous computation mentioned before. We also discuss a relation between cosine vectors of certain pure realizations and the spherical functions appearing in the theory of Gelfand pairs.
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影响因子:
11.2
作者:
C. Ho;Peter Sin;P. Tiep;A. Turull
通讯作者:
A. Turull
影响因子:
11.2
作者:
T. Ceccherini;Fabio Scarabotti;Filippo Tolli
通讯作者:
Filippo Tolli
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
P. McMullen;B. Monson
通讯作者:
B. Monson
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
P. McMullen
通讯作者:
P. McMullen
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
P. McMullen
通讯作者:
P. McMullen