Cut and paste invariants of moduli spaces of stable maps to toric surfaces

Fuente: arXiv
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Autore principale: Rust, Cat
Natura: Preprint
Pubblicazione: 2026
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author Rust, Cat
author_facet Rust, Cat
contents We study moduli spaces of logarithmic stable maps to proper toric surfaces with prescribed tangency conditions to the toric boundary. Fixing a surface, we define a chamber decomposition on the space of all tangencies such that as a function of the tangency data, the class of the corresponding moduli space in the Grothendieck ring of varieties is constant. The tangency data defines a collection of lines through the origin which, along with the rays of the toric fan, are cyclically ordered. The chambers of the decomposition are regions for which this cyclic ordering is constant and generalise the well-known resonance chambers. We pose the open question of whether the Gromov-Witten invariants of the moduli spaces are polynomial on these chambers.
format Preprint
id arxiv_https___arxiv_org_abs_2604_26000
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Cut and paste invariants of moduli spaces of stable maps to toric surfaces
Rust, Cat
Algebraic Geometry
We study moduli spaces of logarithmic stable maps to proper toric surfaces with prescribed tangency conditions to the toric boundary. Fixing a surface, we define a chamber decomposition on the space of all tangencies such that as a function of the tangency data, the class of the corresponding moduli space in the Grothendieck ring of varieties is constant. The tangency data defines a collection of lines through the origin which, along with the rays of the toric fan, are cyclically ordered. The chambers of the decomposition are regions for which this cyclic ordering is constant and generalise the well-known resonance chambers. We pose the open question of whether the Gromov-Witten invariants of the moduli spaces are polynomial on these chambers.
title Cut and paste invariants of moduli spaces of stable maps to toric surfaces
topic Algebraic Geometry
url https://arxiv.org/abs/2604.26000