Academy of Mathematics and Systems Science, CAS Colloquia & Seminars | Speaker: | Giuseppe Mingione,University of Parma | Inviter: | | Title: | Perturbations beyond Schauder | Time & Venue: | 2021.11.18 21:00-21:30 Zoom Meeting ID: 924 888 5804 Passcode: 041787 | Abstract: | So-called Schauder estimates are a standard tool in the analysis of linear elliptic and parabolic PDEs. They had been originally proved by Hopf (1929, interior case), and by Schauder and Caccioppoli (1934, global estimates). Since then, several proofs were given (Campanato, Trudinger, Simon). The nonlinear case is a more recent achievement from the 80s (Giaquinta & Giusti, Ivert, J. Manfredi, Lieberman). All these classical results take place in the uniformly elliptic case. I will discuss progress in the nonuniformly elliptic one. | | | |