Siegel der Universität Augsburg

Universität Augsburg
Institut für Mathematik

Siegel der Universität Augsburg

 

Seminar Topics in Symplectic Geometry

 

Professor Dr. Tobias Ekholm
Uppsala University

 
spricht am
 
Donnerstag, 13. November 2025
 
um
 
12:15 Uhr
 
im
 
Raum 3008 (L1)
 
über das Thema:
 

»Skein valued curve counting«

Abstract:
We explain how to define deformation invariant counts of holomorphic curves in a symplectic Calabi-Yau 3-fold with Maslov zero Lagrangian boundary condition. Wall crossing phenomena for moduli of such curves can be identified with the HOMFLYPT skein relations from knot theory and an invariant count is obtained by counting curves by the values of their boundaries in the skein module of the boundary condition. We discuss applications of this result including a proof of the Ooguri-Vafa conjecture relating holomorphic curves in the resolved conifold to knot theory and new recursion relations for the topological vertex. The talk reports on joint work with Vivek Shende and Pietro Longhi.

 

Hierzu ergeht herzliche Einladung.
Prof. Dr. Kai Cieliebak


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