TRINO ALGEBRAIC GEOMETRY SEMINAR - Monday 15 January, at 16:00 - VENUE: SISSA, Dubrovin Lecture Room 136

[ICTP Math Section]

-------- Forwarded Message --------
Subject: 	[math-users] TRINO ALGEBRAIC GEOMETRY SEMINAR
Date: 	Tue, 9 Jan 2024 13:04:05 +0000
From: 	Andrea Ricolfi <aricolfi at sissa.it>
To: 	math-users at lists.sissa.it <math-users at lists.sissa.it>



Dear All,

this is to announce the next TRINO 
<https://sites.google.com/view/trinotriestino/home> appointment. We have 
Alberto Cobos Rábano (Sheffield) speaking about

*Reduced Gromov-Witten invariants in higher genus*


Abstract: The Gromov-Witten invariants of projective spaces are not 
enumerative in positive genus. The reason is geometric: the moduli space 
of genus-g stable maps has several irreducible components, which 
contribute in the form of lower-genus GW invariants. In genus one, Vakil 
and Zinger constructed a blow-up of the moduli space of stable maps and 
used it to define reduced Gromov-Witten invariants, which correspond to 
curve-counts in the main component. I will present a new definition of 
reduced Gromov-Witten invariants of complete intersections in all genus 
using desingularizations of sheaves. This is joint work with E. Mann, C. 
Manolache and R. Picciotto and can be found in arXiv:2310.06727 
<https://arxiv.org/abs/2310.06727>.

When: Monday 15 jan at 16:00
Where: Dubrovin Lecture Room (136)

All interested are welcome to attend!

all the best,
andrea


https://sites.google.com/view/trinotriestino/home?pli=1

all the best,
andrea