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Algebraic Combinatorics Seminar - Jordan LongExport this event to calendar

Thursday, August 6, 2020 — 2:30 PM EDT

Title: Subdivergence-free gluings of trees

Speaker: Jordan Long
Affiliation: University of Waterloo
Zoom: Contact Karen Yeats

Abstract:

Motivated by questions in quantum field theory, we introduce a purely combinatorial problem of counting subdivergence-free gluings of trees. We present closed-form expressions counting subdivergence-free gluings for four different families of trees, as well as an algorithm to count subdivergence-free gluings of arbitrary pairs of trees. This is joint work with Clair Dai and Karen Yeats.

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