Global stable splittings of Stiefel manifolds
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arXiv
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| Format: | Preprint |
| Published: |
2021
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| _version_ | 1866911247613558784 |
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| author | Schwede, Stefan |
| author_facet | Schwede, Stefan |
| contents | We prove global equivariant refinements of Miller's stable splittings of the infinite orthogonal, unitary and symplectic groups, and more generally of the spaces $O/O(m)$, $U/U(m)$ and $Sp/Sp(m)$. As such, our results encode compatible equivariant stable splittings, for all compact Lie groups, of specific equivariant refinements of these spaces.
In the unitary and symplectic case, we also take the actions of the Galois groups into account. To properly formulate these Galois-global statements, we introduce a generalization of global stable homotopy theory in the presence of an extrinsic action of an additional topological group. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2106_02379 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Global stable splittings of Stiefel manifolds Schwede, Stefan Algebraic Topology 55N91, 55P91 We prove global equivariant refinements of Miller's stable splittings of the infinite orthogonal, unitary and symplectic groups, and more generally of the spaces $O/O(m)$, $U/U(m)$ and $Sp/Sp(m)$. As such, our results encode compatible equivariant stable splittings, for all compact Lie groups, of specific equivariant refinements of these spaces. In the unitary and symplectic case, we also take the actions of the Galois groups into account. To properly formulate these Galois-global statements, we introduce a generalization of global stable homotopy theory in the presence of an extrinsic action of an additional topological group. |
| title | Global stable splittings of Stiefel manifolds |
| topic | Algebraic Topology 55N91, 55P91 |
| url | https://arxiv.org/abs/2106.02379 |