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Algebraic Combinatorics Seminar - Jordan Long
2020-08-06 14:30 (America/Toronto)
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.
