Singular Supports for Character Sheaves on a Group Compactification
Let G be a semisimple adjoint group over C and Ḡ be the De Concini-Procesi completion of G. In this paper, we define a Lagrangian subvariety Λ of the cotangent bundle of Ḡ such that the singular support of any character sheaf on Ḡ is contained in Λ.
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Nature America, Inc,
2022-02-09T19:02:34Z.
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| Subjects: | |
| Online Access: | Get fulltext |
| Summary: | Let G be a semisimple adjoint group over C and Ḡ be the De Concini-Procesi completion of G. In this paper, we define a Lagrangian subvariety Λ of the cotangent bundle of Ḡ such that the singular support of any character sheaf on Ḡ is contained in Λ. |
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