Borel–de Siebenthal pairs, global Weyl modules and Stanley–Reisner rings
Borel–de Siebenthal pairs, global Weyl modules and Stanley–Reisner rings
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Boreläde Siebenthal 对、全局 Weyl 模块和 StanleyäReisner 环
DOI:
10.1007/s00209-017-2035-4
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发表时间:
2018
影响因子:
0.8
通讯作者:
Odell, Matt
中科院分区:
文献类型:
--
作者:
Chari, Vyjayanthi;Kus, Deniz;Odell, Matt
We develop the theory of integrable representations for an arbitrary standard maximal parabolic subalgebra of an affine Lie algebra. We see that such subalgebras can be thought of as arising in a natural way from a Borel–de Siebenthal pair of semisimple Lie algebras. We see that although there are similarities with the representation theory of the standard maximal parabolic subalgebra there are also very interesting and non-trivial differences; including the fact that there are examples of non-trivial global Weyl modules which are irreducible and finite-dimensional. We also give a presentation of the endomorphism ring of the global Weyl module; although these are no longer polynomial algebras we see that for certain parabolics these algebras are Stanley–Reisner rings which are both Koszul and Cohen–Macaulay.
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DOI:
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发表时间:
2014
期刊:
影响因子:
--
作者:
E. Feigin;I. Makedonskyi
通讯作者:
I. Makedonskyi
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
Vyjayanthi Chari;B. Ion;Deniz Kus
通讯作者:
Deniz Kus
DOI:
--
发表时间:
2015
期刊:
Journal of Combinatorial Theory
影响因子:
--
作者:
E. Feigin;I. Makedonskyi
通讯作者:
I. Makedonskyi
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
E. Feigin;I. Makedonskyi;Daniel Orr
通讯作者:
Daniel Orr
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
G. Fourier;Tanusree Khandai;Deniz Kus;Alistair Savage
通讯作者:
Alistair Savage