Cut-and-paste invariants of moduli spaces of relative stable maps to $\mathbb{P}^1$

Abstract: I will discuss ongoing work studying moduli spaces of genus zero stable maps to $\mathbb{P}^1$, with fixed ramification profiles over $0$ and infinity. I will describe a chamber decomposition of the space of ramification data such that the Grothendieck class of the moduli space is constant on the chambers. Finally, for the sequence of ramification data corresponding to maximal ramification over $0$ and no ramification over infinity, I will describe a recursive algorithm to compute the generating function for Euler characteristics of these spaces.

algebraic geometrycombinatorics

Audience: researchers in the topic

Tropical Geometry in Frankfurt/Zoom TGiF/Z

Series comments: Description: An afternoon seminar series on tropical geometry, known as the TGiZ ("Tropical Geometry in Zoom") or the TGiF ("Tropical Geometry in Frankfurt") seminar.

Please send an email to one of the organizers at the latest one day before a session if you wish to receive the Zoom link and password.

Videos of some past talks are available on YouTube here, while some slides can be found here.