Special Session 156: Structure and dynamics of solutions for nonlinear elliptic and parabolic equations

Asymptotic expansion of the heat content for polyharmonic heat equations
Nobuhito Miyake
Faculty of Mathematics, Kyushu University
Japan
Co-Author(s):    
Abstract:
We consider the asymptotic behavior of the heat content associated with polyharmonic heat equations as time approaches zero. Here, the heat content is defined as the mass of solutions over a fixed smooth compact set with initial data given by the indicator function of this set. More precisely, we derive a higher-order asymptotic expansion of the heat content and provide explicit expressions for the coefficients, which reflect the geometric properties of the boundary. We also discuss a connection between our results and a thresholding algorithm for a geometric evolution equation.