Richard P. Stanley Seminar in Combinatorics: Derived categories of the permutahedra varieties

SEMINARS, HARVARD-MIT COMBINATORICS

Speaker:

Mario Sanchez - Cornell

The derived category of a variety is an important and difficult invariant. In this talk, I discuss a purely convex-geometric and combinatorial approach to these categories for toric varieties. Along the way, we will run into the curious question of studying the contractibility of set differences of polytopes. I will focus on the toric variety of the permutahedron which has played an important role in many recent developments in matroid theory. I will discuss how this derived category can be described through the theory of matroids.

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For more info, see https://math.mit.edu/combin/