Special Session 48: Fluid dynamics and KAM theory

Onsager conjecture for SQG

Mimi Dai
University of Illinois at Chicago
USA
Co-Author(s):    Vikram Giri, Razvan-Octavian Radu
Abstract:
The Hamiltonian of the surface quasi-geostrophic (SQG) equation is an invariant quantity for regular enough solutions. It is postulated that the critical Holder regularity required to have the Hamiltonian conserved is C^{0}, known as the Onsager type of conjecture for SQG. We give a proof of this conjecture using a two-step scheme of convex integration.