Shear coordinates of Weil-Petersson circle homeomorphisms
By Yilin Wang
Graph complex action on Poisson structures: from theory to computation
By Ricardo Buring
Appears in collection : 2021 - T2 - WS2 - Advances in Symplectic Topology
Frozen planet orbits are periodic orbits in the Helium atom, which play an important role in the semiclassical treatment of Helium. In the talk I discuss them from a mathematical point of view and explain how they are related to Hamiltonian delay equations.