Integral exotic sheaves and the modular Lusztig–Vogan bijection
Integral exotic sheaves and the modular Lusztig–Vogan bijection
复制标题
整体式奇异滑轮和模块化 LusztigâVogan 双射
DOI:
10.1112/jlms.12638
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Riche, Simon
中科院分区:
文献类型:
--
作者:
Achar, Pramod N.;Hardesty, William;Riche, Simon
Let G$G$ be a reductive algebraic group over an algebraically closed field k$\mathbb {k}$ of pretty good characteristic. The Lusztig–Vogan bijection is a bijection between the set of dominant weights for G$G$ and the set of irreducible G$G$‐equivariant vector bundles on nilpotent orbits, conjectured by Lusztig and Vogan independently, and constructed in full generality by Bezrukavnikov. In characteristic 0, this bijection is related to the theory of 2‐sided cells in the affine Weyl group, and plays a key role in the proof of the Humphreys conjecture on support varieties of tilting modules for quantum groups at a root of unity. In this paper, we prove that the Lusztig–Vogan bijection is (in a way made precise in the body of the paper) independent of the characteristic of k$\mathbb {k}$. This allows us to extend all of its known properties from the characteristic‐0 setting to the general case. We also expect this result to be a step towards a proof of the Humphreys conjecture on support varieties of tilting modules for reductive groups in positive characteristic.
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影响因子:
2.3
作者:
A. Beilinson;Joseph Bernstein;P. Deligne
通讯作者:
A. Beilinson;Joseph Bernstein;P. Deligne
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
William D. Hardesty
通讯作者:
William D. Hardesty
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
William D. Hardesty
通讯作者:
William D. Hardesty
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
Shruthi Prabhakara;R. Acharya
通讯作者:
R. Acharya
DOI:
10.1007/bf02684589
发表时间:
1968
期刊:
Publications mathématiques de l'IHÉS
影响因子:
--
作者:
Jean
通讯作者:
Jean