Special Session 53: Qualitative and Quantitative Techniques for Differential Equations arising in Applied and Natural Sciences

Gradient Flow of the SBR Entropy

Miaohua Jiang
Wake Forest University
USA
Co-Author(s):    
Abstract:
We prove the local existence of a gradient flow of the SRB entropy functional on a Hilbert manifold of expanding maps on a circle with a Sobolev norm in its tangent space. In a simple case, we obtain an explicit formula for the flow`s ordinary differential equation representation. This gradient flow has a close connection to an interesting nonlinear partial differential equation: a gradient-dependent diffusion equation, u_t u_x = u_{xx}.