# Benjamin Schröter: About Dressians and tropical Grassmannians

**Time: **
Wed 2020-10-14 10.15 - 11.15

**Location: **
KTH, F11

**Lecturer: **
Benjamin Schröter

Abstract: Matroids are a combinatorial generalization of both graphs and

finite point configurations in vector spaces. The later are called

representable matroids. Matroids which are equipped with an additional

valuation are called valuated matroids or tropical linear spaces. They

are an object of central interest in tropical geometry.

I will introduce these matroids and their moduli spaces, the Dressians

and tropical Grassmannians.

Moreover, I will discuss recent results about their polyhedral structure.