Modular representations of Lie algebras of reductive groups and Humphreys' conjecture
Modular representations of Lie algebras of reductive groups and Humphreys' conjecture
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还原群李代数的模表示和汉弗莱斯猜想
DOI:
10.1016/j.aim.2021.108024
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发表时间:
2021
影响因子:
1.7
通讯作者:
Premet A
中科院分区:
文献类型:
--
作者:
Premet A
Let G be connected reductive algebraic group defined over an algebraically closed field of characteristic p> 0 and suppose that p is a good prime for the root system of G, the derived subgroup of G is simply connected and the Lie algebra g= Lie (G) admits a non-degenerate (Ad G)-invariant symmetric bilinear form. Given a linear function χ on g we denote by U χ (g) the reduced enveloping algebra of g associated with χ. By the Kac–Weisfeiler conjecture (now a theorem), any irreducible U χ (g)-module has dimension divisible by p d (χ) where 2 d (χ) is the dimension of the coadjoint G-orbit containing χ. In this paper we give a positive answer to the natural question raised in the 1990s by Kac, Humphreys and the first-named author and show that any algebra U χ (g) admits a module of dimension p d (χ).
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DOI:
10.1090/s1088-4165-09-00355-0
发表时间:
2008
期刊:
arXiv: Representation Theory
影响因子:
--
作者:
V. Ginzburg
通讯作者:
V. Ginzburg
影响因子:
0.6
作者:
George J. McNinch
通讯作者:
George J. McNinch
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
I. Losev
通讯作者:
I. Losev
影响因子:
1.3
作者:
O. Yakimova
通讯作者:
O. Yakimova
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
A. Premet;L. Topley
通讯作者:
L. Topley