(2017.06.05 14:00pm N202)Changgui Zhang:On the summability of formal solutions of singular PDEs
Time:2017-06-01 Source:KLMM
Title: On the summability of formal solutions of singular PDEs
Speaker: Changgui Zhang (Université de Sciences et Technologies de Lille, France)
Time&Venue: 2017.06.05 14:00pm N202
Abstract: Via the Stokes phenomenon, the Borel-Laplace summation method plays a central role for the analytic description of the Galois differential group associated with a singular linear ODE. In the talk, we deal with a family of totally characteristic type PDEs, establishing the summability of their formal solutions in suitable Gevrey spaces. This is a joint work with Chen H. and Luo Z..