## Geometry Seminar - Abstracts

### Talk

Monday 26 February 2018, 16:00-17:00 in HG03.085

**Di Yang** (Bonn)

*Simple Lie algebras, periods, and topological ODEs*

### Abstract

We study the topological ODE associated with each simple Lie algebra.
For a simply-laced simple Lie algebra, we discuss the conjectural relationship
between the fundamental series (which characterize solutions to the topological
ODE) and periods (which characterize solutions to the associated Gauss-Manin
connection). The seminar is based on a series of joint work with Marco Bertola,
Boris Dubrovin and Don Zagier.

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