Speaker
Lorenzo Tancredi
Description
Our understanding of scattering amplitudes in Gauge theories is tightly intertwined with our knowledge of polylogarithms. In this context, the symbol map has not only allowed us to make sense of their analytic properties but also to devise new calculational techniques. Building on our understanding of polylogarithms, this talk will illustrate how the emergence of new geometries in scattering amplitudes necessitates the generalisation of many concepts familiar in the polylog world. I will discuss which concepts can be easily generalised and which ones require care, providing important building blocks for our understanding of scattering amplitudes defined on elliptic curves, Calabi-Yau geometries, and higher-genus hypersurfaces.