Concert· Leipzig
What can algebraic geometry do for rational functions in scattering amplitudes?
I will discuss how computational algebraic geometry can help expose and exploit their underlying structure, making reconstruction of analytic expressions from numerical samples feasible. In particular, I will describe multivariate partial-fraction decompositions constructed from interpolation on a two-dimensional slice, as used in a recent two-loop Higgs+2jet calculation, or through p-adic probes