23 mar 2022 -- 17:00
Geometry in Como - online
Abstract.
b-Structures are hidden in many places, on manifolds with boundary and associated index formulae (Melrose, Nest-Tsygan), in the geometry of pseudo-Riemannian geodesics (Khesin-Tabachnikov) and in the regularization transformations in celestial mechanics (Mc Gehee). We will give a panorama talk on b-structures in the symplectic and contact realm describing some of the main techniques and some open problems.