Iwasawa theory for weighted graphs
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866913876037074944 |
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| author | Adachi, Taiga Mizuno, Kosuke Tateno, Sohei |
| author_facet | Adachi, Taiga Mizuno, Kosuke Tateno, Sohei |
| contents | Let $p$ be a prime number and let $d$ be a positive integer. In this paper, we generalize Iwasawa theory for graphs initiated by Gonet and Vallières to weighted graphs. In particular, we prove an analogue of Iwasawa's class number formula and that of Kida's formula for compatible systems of $(\mathbb{Z}/p^n\mathbb{Z})^d$-covers of weighted graphs. We also provide numerical examples of characteristic elements and Iwasawa invariants. At the end of this paper, we give an application of the ideas of Iwasawa theory to the theory of discrete-time quantum walks in graphs. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2412_01612 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Iwasawa theory for weighted graphs Adachi, Taiga Mizuno, Kosuke Tateno, Sohei Number Theory Combinatorics 11R23, 05C22, 05C25, 81P68 Let $p$ be a prime number and let $d$ be a positive integer. In this paper, we generalize Iwasawa theory for graphs initiated by Gonet and Vallières to weighted graphs. In particular, we prove an analogue of Iwasawa's class number formula and that of Kida's formula for compatible systems of $(\mathbb{Z}/p^n\mathbb{Z})^d$-covers of weighted graphs. We also provide numerical examples of characteristic elements and Iwasawa invariants. At the end of this paper, we give an application of the ideas of Iwasawa theory to the theory of discrete-time quantum walks in graphs. |
| title | Iwasawa theory for weighted graphs |
| topic | Number Theory Combinatorics 11R23, 05C22, 05C25, 81P68 |
| url | https://arxiv.org/abs/2412.01612 |