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東京名古屋代数セミナー
過去の記録 ～05/01｜次回の予定｜今後の予定 05/02～
| 担当者 | 阿部 紀行、Aaron Chan、伊山 修、行田 康晃、淺井 聡太、高橋 亮 |
|---|---|
| セミナーURL | http://www.math.nagoya-u.ac.jp/~aaron.chan/TNAseminar.html |
2024年12月20日(金)
17:00-18:30 オンライン開催
Simon Riche 氏 (Université Clermont Auvergne)
Semiinfinite sheaves on affine flag varieties (English)
https://www.math.nagoya-u.ac.jp/~aaron.chan/TNAseminar.html
Simon Riche 氏 (Université Clermont Auvergne)
Semiinfinite sheaves on affine flag varieties (English)
[ 講演概要 ]
We will explain how, generalizing a construction of Gaitsgory, one can define and study a category of sheaves on the affine flag variety of a complex reductive group that "models" sheaves on the corresponding semiinfinite flag variety, with coefficients in a field of positive characteristic, and which should provide a geometric model for a category of representations of the Langlands dual Lie algebra over the given coefficient field. As an application, we use this construction to compute the dimensions of stalks of the intersection cohomology complex on Drinfeld's compactification, with coefficients in any field of good characteristic. This is joint work with Pramod Achar and Gurbir Dhillon.
ミーティング ID: 882 1561 8969
パスコード: 531394
[ 講演参考URL ]We will explain how, generalizing a construction of Gaitsgory, one can define and study a category of sheaves on the affine flag variety of a complex reductive group that "models" sheaves on the corresponding semiinfinite flag variety, with coefficients in a field of positive characteristic, and which should provide a geometric model for a category of representations of the Langlands dual Lie algebra over the given coefficient field. As an application, we use this construction to compute the dimensions of stalks of the intersection cohomology complex on Drinfeld's compactification, with coefficients in any field of good characteristic. This is joint work with Pramod Achar and Gurbir Dhillon.
ミーティング ID: 882 1561 8969
パスコード: 531394
https://www.math.nagoya-u.ac.jp/~aaron.chan/TNAseminar.html
