## 2009 Number Theory Seminar - 05

- Date: 02/12/2009

Lecturer(s):
Karen Yeats (SFU)

Location:

Simon Fraser University

Topic:

Weight drop in Phi^4 transcendentals

Description:

Primitive Feynman graphs in Phi^4 theory give rise to transcendental

numbers which, from the work of people like David Broadhurst, are

multiple zeta values in known examples. Very little is known in

general. Even how to predict the weight of the zeta value from the

graph without doing the integrations is not known in general. I will

discuss one special case of predicting weight drop, some interesting

conjectures from the known data, and what very little I can prove so

far.

Schedule:

3:00pm-3:50pm, Room ASB 10900 (IRMACS)