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Thomas Lam: Polypositroids

Tid: On 2021-04-28 kl 15.15 - 16.15

Plats: Zoom meeting ID: 654 5562 3260

Föreläsare: Thomas Lam

Abstract: Polypositroids are polytopes that are simultaneously alcoved
polytopes and generalized permutahedra. Whereas positroids are
"positive" matroids, polypositroids are "positive" polymatroids. I
will discuss the parametrization and classification of polypositroids,
and the relation to certain discrete surfaces we call membranes. This
is joint work with Alex Postnikov.

Zoom meeting ID: 654 5562 3260

Zoom link: https://kth-se.zoom.us/j/65455623260