Shear coordinates of Weil-Petersson circle homeomorphisms
By Yilin Wang
Graph complex action on Poisson structures: from theory to computation
By Ricardo Buring
By Lev Buhovsky
Appears in collections : 2021 - T2 - WS2 - Advances in Symplectic Topology, ECM 2024 Invited Speakers
The Fabry quotient theorem states that for a complex power series with unit radius of convergence, if the quotient of its consecutive coefficients tends to s, then the point z=s is a singular point of the series. In my talk I will try to describe an elementary proof of the theorem.