A theory of twisted umkehr maps
Fuente:
arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| _version_ | 1866918412454723584 |
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| author | Lahtinen, Anssi |
| author_facet | Lahtinen, Anssi |
| contents | We develop a theory of umkehr maps for twisted generalized homology theories. In this theory, interesting umkehr maps, including generalizations of important classical ones, are induced by cartesian morphisms of a certain category opfibred over the category of spaces and continuous maps, making it possible to access them through universal properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_23776 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A theory of twisted umkehr maps Lahtinen, Anssi Algebraic Topology 55N20 (Primary) 55R70, 55M05 (Secondary) We develop a theory of umkehr maps for twisted generalized homology theories. In this theory, interesting umkehr maps, including generalizations of important classical ones, are induced by cartesian morphisms of a certain category opfibred over the category of spaces and continuous maps, making it possible to access them through universal properties. |
| title | A theory of twisted umkehr maps |
| topic | Algebraic Topology 55N20 (Primary) 55R70, 55M05 (Secondary) |
| url | https://arxiv.org/abs/2603.23776 |