On the topology of the moduli of tropical unramified p-covers
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arXiv
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| Format: | Preprint |
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2024
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| author | Maazouz, Yassine El Helminck, Paul Alexander Röhrle, Felix Souza, Pedro Yun, Claudia He |
| author_facet | Maazouz, Yassine El Helminck, Paul Alexander Röhrle, Felix Souza, Pedro Yun, Claudia He |
| contents | We study the topology of the moduli space of unramified $\mathbb{Z}/p$-covers of tropical curves of genus $g \geq 2$, where $p$ is a prime number. We use recent techniques by Chan--Galatius--Payne to identify contractible subcomplexes of the moduli space. We then use this contractibility result to show that this moduli space is simply connected. In the case of genus 2, we determine the homotopy type of this moduli space for all primes $p$. This work is motivated by prospective applications to the top-weight cohomology of the space of prime cyclic étale covers of smooth algebraic curves. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_06624 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | On the topology of the moduli of tropical unramified p-covers Maazouz, Yassine El Helminck, Paul Alexander Röhrle, Felix Souza, Pedro Yun, Claudia He Algebraic Geometry Algebraic Topology Combinatorics 14T20, 05E14, 14H10 We study the topology of the moduli space of unramified $\mathbb{Z}/p$-covers of tropical curves of genus $g \geq 2$, where $p$ is a prime number. We use recent techniques by Chan--Galatius--Payne to identify contractible subcomplexes of the moduli space. We then use this contractibility result to show that this moduli space is simply connected. In the case of genus 2, we determine the homotopy type of this moduli space for all primes $p$. This work is motivated by prospective applications to the top-weight cohomology of the space of prime cyclic étale covers of smooth algebraic curves. |
| title | On the topology of the moduli of tropical unramified p-covers |
| topic | Algebraic Geometry Algebraic Topology Combinatorics 14T20, 05E14, 14H10 |
| url | https://arxiv.org/abs/2403.06624 |