Universität Augsburg

Professor Dr. Rahul Pandharipande
ETH, Zürich
spricht am
Dienstag, 28. Januar 2020
um
14:00 Uhr
im
Raum 1007 (L1)
über das Thema:
Abstract: 
A basic question in the theory of algebraic curves is whether a divisor represents the zeros and poles of a rational function. An explicit solution in terms of periods was given by the work of Abel and Jacobi in the 19th century. In the past few years, a different approach to the question has been pursued: what is the class in the moduli of pointed curves of the locus of such divisors? The answer in GromovWitten theory is given by Pixton's formula for the double ramification cycle. I will discuss recent work with F. Janda, A. Pixton, and D. Zvonkine which considers double ramification cycles for target varieties X. 
Hierzu ergeht herzliche Einladung. 
Prof. Dr. Maxim Smirnov 