HET- seminar: Ömer Gürdoğan

Speaker:  Ömer Gürdoğan

Title: Scattering amplitudes as cluster-adjacent polylogarithms

Abstract:  The idea of constructing scattering amplitudes from their
 singularities has been a very powerful approach for their
 computation. I will describe how a geometric principle based on
 cluster algebras governs the analytic structure of scattering
 amplitudes at tree and loop level. I will also discuss some
 properties of subclasses of polylogarithms that obey this principle.