Abstract: We study cluster structures on spinor helicity and momentum twistor varieties which describe the kinematic spaces of massless scattering. Both varieties are certain partial flag varieties. We exhibit embeddings of the corresponding cluster algebras into cluster algebras of sufficiently large Grassmannians and show how the former is obtained by freezing certain cluster variables from the latter. This is joint work with Lara Bossinger.
Cluster structures on spinor helicity and momentum twistor varieties
03.12.2024 15:00 - 16:30
Organiser:
I. Fischer (U Wien), M. Schlosser (U Wien)
Location: