Speaker
Lionel Mason
Description
This talk will review the twistor origins of celestial symmetry algebras and their deformations/extension to (A)dS. It will go on to discuss their origin as Hamiltonians via twistor actions and connections with the integral systems literature and top down approaches to celestial holography. This is partly based on joint work with Bittleston, Bogna, Kmec & Skinner arxiv:2403.18011 and with Kmec, Ruzziconi and Sharma arxiv:2506.01888.
