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Presented By: Student Combinatorics Seminar - Department of Mathematics

Student Combinatorics: Generalizing Polypositroids

Mia Smith

In their 2020 paper, Thomas Lam and Alexander Postnikov define polypositroids, the polytopal analog of positroids. However, they also go one step further and observe that the definition of a polypositroid is secretly based on the type A root system. In this talk, we’ll discuss how polypositroids can be extended to arbitrary finite root systems and examine how the parameterization of polypositroids can be generalized too.

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