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math.AG2025

Computations in equivariant Gromov-Witten theory of GKM spaces

Daniel Holmes, Giosuè Muratore

We study equivariant Gromov-Witten invariants and quantum cohomology in GKM theory. Building on the localization formula, we prove that the resulting expression is independent of t…

math.AG2025

Quadratic counts of highly tangent lines to hypersurfaces

Stephen McKean, Giosuè Muratore, Wern Juin Gabriel Ong

We give two geometric interpretations for the local type of a line that is highly tangent to a hypersurface in a single point. One interpretation is phrased in terms of the Wronski…

math.AG2025

Relative Gromov-Witten and maximal contact conics

Giosuè Muratore

We discuss some properties of the relative Gromov--Witten invariants counting rational curves with maximal contact order at one point. We compute the number of Cayley's sextactic c…

math.AG2025

An arithmetic count of osculating lines

Giosuè Muratore

We say that a line in is osculating to a hypersurface if they meet with contact order . When , it is known that through a fixed point of $…

math.AG2025

Computations of Gromov-Witten invariants of toric varieties

Giosuè Muratore

We present the Julia package ToricAtiyahBott.jl, providing an easy way to perform the Atiyah-Bott formula on the moduli space of genus stable maps wh…

math.AG2024

Enumeration of rational contact curves via torus actions

Giosuè Muratore

We prove that some Gromov-Witten numbers associated to rational contact (Legendrian) curves in any contact complex projective space with arbitrary incidence conditions are enumerat…