On de Rham--Witt Cohomology of Classifying Stacks
Fuente:
arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| _version_ | 1866914443181424640 |
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| author | Li, Shizhang Yang, Yuan |
| author_facet | Li, Shizhang Yang, Yuan |
| contents | We give an example of proper smooth fourfold over a perfect field k of characteristic p > 0 with asymmetric Hodge--Witt numbers in total degree 3. Our example is sharp both in terms of dimension and total degree. We arrive at our example by computing and approximating the Hodge--Witt cohomology groups of the classifying stack B alpha_p. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_03062 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | On de Rham--Witt Cohomology of Classifying Stacks Li, Shizhang Yang, Yuan Algebraic Geometry Number Theory We give an example of proper smooth fourfold over a perfect field k of characteristic p > 0 with asymmetric Hodge--Witt numbers in total degree 3. Our example is sharp both in terms of dimension and total degree. We arrive at our example by computing and approximating the Hodge--Witt cohomology groups of the classifying stack B alpha_p. |
| title | On de Rham--Witt Cohomology of Classifying Stacks |
| topic | Algebraic Geometry Number Theory |
| url | https://arxiv.org/abs/2604.03062 |