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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Feynman graphs, Periods and Polylogarithms: Sub-Hopf algebra and Hochschild cohomology

Presented by Dirk Kreimer, IHES Paris and Boston University

8 January 2008 14:00 in CM105

We study how to obtain sub Hopf algebras and their role in quantum field theory. In particular, we study the structure of a proof of renormalizability by local counterterms from the Hochschild cohomology of Hopf algebras.

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