$${\mathcal {W}}$$-algebras and Whittaker categories
$${\mathcal {W}}$$-algebras and Whittaker categories
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$${mathcal {W}}$$-代数和 Whittaker 范畴
DOI:
10.1007/s00029-021-00641-6
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发表时间:
2021
期刊:
影响因子:
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通讯作者:
Raskin, Sam
中科院分区:
文献类型:
--
作者:
Raskin, Sam
This article is concerned with Whittaker models in geometric representation theory, and gives applications to the study of affine-algebras. The main new innovation connects Whittaker models to invariants for compact-open subgroups of the loop group. This method, which has a counterpart forp-adic groups, settles a conjecture of Gaitsgory in the categorical setting. This method shows that Whittaker sheaves in geometric representation theory admitt-structures, as had previously been observed in some special cases. We then apply this method to the setting of affine-algebras. We study a new family of modules for affine-algebras, which can be thought of as analogues of certain tautological (“generalized vaccuum”) modules over the Kac-Moody algebra. Using the abovet-structure, we obtain an affine analogue of Skryabin’s theorem that connects affine-algebras and Whittaker models. This theorem allows various geometric methods to be used to study affine-algebras. As one such application, we offer a new proof of one of Arakawa’s foundational results in the theory.
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DOI:
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发表时间:
2017
期刊:
影响因子:
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作者:
D. Gaitsgory;N. Rozenblyum
通讯作者:
N. Rozenblyum
DOI:
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发表时间:
2007
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作者:
A. Beilinson
通讯作者:
A. Beilinson
DOI:
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发表时间:
2007
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影响因子:
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作者:
E. Frenkel;D. Gaitsgory
通讯作者:
D. Gaitsgory
DOI:
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发表时间:
2015
期刊:
影响因子:
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作者:
D. Gaitsgory;S. Raskin
通讯作者:
S. Raskin
DOI:
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发表时间:
1975
期刊:
影响因子:
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作者:
F. Rodier
通讯作者:
F. Rodier