On the moment measure conjecture
Fuente:
arXiv
Guardado en:
| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866913572250976256 |
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| author | Heinloth, Jochen Zhang, Xucheng |
| author_facet | Heinloth, Jochen Zhang, Xucheng |
| contents | The moment measure conjecture of Bialynicki-Birula and Sommese gives a combinatorial characterization of all open substacks of a global quotient stack for a torus action on a normal projective variety that admit a proper good moduli space, in other words it characterizes the invariant open subvarieties that admit a proper quotient. In this article we prove the conjecture for actions on smooth varieties. This gives an instance of stability conditions defined by cohomological invariants that are not given by Chern classes of line bundles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_05951 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | On the moment measure conjecture Heinloth, Jochen Zhang, Xucheng Algebraic Geometry The moment measure conjecture of Bialynicki-Birula and Sommese gives a combinatorial characterization of all open substacks of a global quotient stack for a torus action on a normal projective variety that admit a proper good moduli space, in other words it characterizes the invariant open subvarieties that admit a proper quotient. In this article we prove the conjecture for actions on smooth varieties. This gives an instance of stability conditions defined by cohomological invariants that are not given by Chern classes of line bundles. |
| title | On the moment measure conjecture |
| topic | Algebraic Geometry |
| url | https://arxiv.org/abs/2312.05951 |