Special Session 73: Nonlinear elliptic and parabolic equations and related functional inequalities

Some nonlinear heat equations with exponential non-linearity and with singular data in two dimensions
Elide Terraneo
University of Milano
Italy
Co-Author(s):    Y. Fujishima, N. Ioku , and B. Ruf
Abstract:
In this talk we deal with a class of nonlinear heat equations in two dimensions. Recently, for some specific nonlinearities with exponential growth of Trudinger-Moser type, Ioku et al and Ibrahim et al establish the existence of a singular stationary solution. Then, they prove that the Cauchy problem, with this singular solution as initial data, admits, at least, two different solutions. Here we consider similar nonuniqueness phenomena for a wider class of nonlinearities in two dimensions.