Adam Afandi: An Ehrhart Theory for Tautological Intersection Numbers
(Research Seminar on Geometry, Algebra and Topology: Moduli Spaces of Complex Curves)
Wednesday, 26.10.2022 16:15 im Raum M3
I will discuss how one can organize tautological intersection
numbers on the moduli space of stable curves into families of lattice point
counts of integer dilates of partial polytopal complexes. Viewing these
intersection numbers as lattice point counts provides a novel enumerative
interpretation. In order to establish this correspondence between
intersection numbers and lattice point counts, we first organize
tautological intersection numbers into polynomial families. One then uses a
classification theorem of Breuer that says these polynomials are actually
Ehrhart polynomials. The talk will assume no background in Ehrhart theory.
I will end the talk with some open problems, and outline some directions
for future work.
Angelegt am 20.10.2022 von Gabi Dierkes
Geändert am 20.10.2022 von Gabi Dierkes
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