Jos Vermaseren (Amsterdam):

Some algebraic methods in Field Theory

Abstract:

The methods for computing Feynman diagrams have become more and more sophisticated over the years. Lately much progress has been made to express them in terms of Harmonic Sums. In this talk I will show some techniques by which these sums can be manipulated. This is applied to two interesting problems: one is how to express Multiple Zeta Values into a minimal set and the other concerns the solving difference equations. These problems will be placed in their physics context.

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