Modular intersection cohomology of Drinfeld's compactifications
Fuente:
arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866916754851102720 |
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| author | Achar, Pramod N. Dhillon, Gurbir Riche, Simon |
| author_facet | Achar, Pramod N. Dhillon, Gurbir Riche, Simon |
| contents | We compute the dimension of the cohomology of stalks of intersection cohomology complexes on Zastava schemes and Drinfeld compactifications associated with a connected reductive algebraic group $G$, in case the characteristic of the coefficients field $\Bbbk$ is good for $G$. In particular, we show that these dimensions do not depend on the choice of $\Bbbk$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_17953 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Modular intersection cohomology of Drinfeld's compactifications Achar, Pramod N. Dhillon, Gurbir Riche, Simon Representation Theory We compute the dimension of the cohomology of stalks of intersection cohomology complexes on Zastava schemes and Drinfeld compactifications associated with a connected reductive algebraic group $G$, in case the characteristic of the coefficients field $\Bbbk$ is good for $G$. In particular, we show that these dimensions do not depend on the choice of $\Bbbk$. |
| title | Modular intersection cohomology of Drinfeld's compactifications |
| topic | Representation Theory |
| url | https://arxiv.org/abs/2505.17953 |