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Thursday, June 4, 2020

Thursday, June 4, 2020 — 2:30 PM EDT

Title: Weighted generating functions for weighted chord diagrams

Speaker: Lukas Nabergall Affiliation: University of Waterloo Zoom: Contact Karen Yeats

Abstract:

Motivated by the universal property of the Connes-Kreimer Hopf algebra of rooted trees and Hopf subalgebras arising from so-called combinatorial Dyson-Schwinger equations, we introduce a class of two-variable recursive functional equations involving Hochschild 1-cocycle operators.

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