Kida's formula via Selmer complexes
Fuente:
arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866913249618821120 |
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| author | Kataoka, Takenori |
| author_facet | Kataoka, Takenori |
| contents | In Iwasawa theory, the $λ$, $μ$-invariants of various arithmetic modules are fundamental invariants that measure the size of the modules. Concerning the minus components of the unramified Iwasawa modules, Kida proved a formula that describes the behavior of those invariants with respect to field extensions. Subsequently, many analogues of Kida's formula have been found in various areas in Iwasawa theory. In this paper, we present a novel approach to such analogues of Kida's formula, based on the perspective of Selmer complexes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_07036 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Kida's formula via Selmer complexes Kataoka, Takenori Number Theory 11R23 In Iwasawa theory, the $λ$, $μ$-invariants of various arithmetic modules are fundamental invariants that measure the size of the modules. Concerning the minus components of the unramified Iwasawa modules, Kida proved a formula that describes the behavior of those invariants with respect to field extensions. Subsequently, many analogues of Kida's formula have been found in various areas in Iwasawa theory. In this paper, we present a novel approach to such analogues of Kida's formula, based on the perspective of Selmer complexes. |
| title | Kida's formula via Selmer complexes |
| topic | Number Theory 11R23 |
| url | https://arxiv.org/abs/2401.07036 |