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Algebra seminarExport this event to calendar

Wednesday, January 7, 2015 — 2:30 PM EST

Karen Yeats, Simon Fraser University

"Tree Feynman rules”

Tree Feynman rules are maps from the Connes-Kreimer Hopf algebra of rooted trees to a polynomial ring which satisfy certain algebraic properties. It’s not too hard to show what the most general possible tree Feynman rules are; the answer is rather combinatorial. I’ll explain the background and how this argument goes. (This will ultimately be a small part of a larger joint work with Dirk Kreimer and Spencer Bloch.)

Location 
MC - Mathematics & Computer Building
5403
200 University Avenue West

Waterloo, ON N2L 3G1
Canada

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