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SUMMARY:Gromov-Witten theory  and the tautological ring - Dhruv Ranganatha
 n (University of Cambridge)
DTSTART:20240621T090000Z
DTEND:20240621T100000Z
UID:TALK217693@talks.cam.ac.uk
DESCRIPTION:Gromov-Witten theory is a natural source of cohomology classes
  on the moduli space of curves.&nbsp\;I will explain a speculation\, going
  back to Levine and Pandharipande\, that the classes produced by Gromov-Wi
 tten theory lie in a surprisingly small part of cohomology: the tautologic
 al subring. I will explain how logarithmic Gromov-Witten theory can be use
 d to approach this speculation\, and try to share some of the subtleties i
 nvolved in this approach. Based on recent and ongoing work with Davesh Mau
 lik.
LOCATION:Seminar Room 1\, Newton Institute
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