Hilbert Series for Configuration Spaces of Punctured Surfaces

Fuente: arXiv
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Auteurs principaux: Huang, Yifeng, Ramos, Eric
Format: Preprint
Publié: 2025
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author Huang, Yifeng
Ramos, Eric
author_facet Huang, Yifeng
Ramos, Eric
contents Let $Σ_{g,r}$ denote the $r$-punctured closed Riemann surface of genus $g$. For every $g\geq 0$, we determine the four-variable generating function for the mixed Hodge numbers of the unordered configuration spaces of $Σ_{g,1}$. The cases where $g\geq 2$ are new. Combining a result of \cite{huang2020cohomology}, this determines the analogous generating function for $Σ_{g,r}$ for all $r\geq 1$. As an application of our formula we illustrate how classical homological stability results, as well as so-called secondary stability results of \cite{miller2019higher} can be interpolated to illustrate stable behaviors in the mixed Hodge numbers of these spaces which have been thus-far undiscovered.
format Preprint
id arxiv_https___arxiv_org_abs_2507_09746
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Hilbert Series for Configuration Spaces of Punctured Surfaces
Huang, Yifeng
Ramos, Eric
Algebraic Geometry
Algebraic Topology
Combinatorics
Let $Σ_{g,r}$ denote the $r$-punctured closed Riemann surface of genus $g$. For every $g\geq 0$, we determine the four-variable generating function for the mixed Hodge numbers of the unordered configuration spaces of $Σ_{g,1}$. The cases where $g\geq 2$ are new. Combining a result of \cite{huang2020cohomology}, this determines the analogous generating function for $Σ_{g,r}$ for all $r\geq 1$. As an application of our formula we illustrate how classical homological stability results, as well as so-called secondary stability results of \cite{miller2019higher} can be interpolated to illustrate stable behaviors in the mixed Hodge numbers of these spaces which have been thus-far undiscovered.
title Hilbert Series for Configuration Spaces of Punctured Surfaces
topic Algebraic Geometry
Algebraic Topology
Combinatorics
url https://arxiv.org/abs/2507.09746