Special Session 124: Mathematical methods for heterogeneous media

Sharp-interface limit for non-isothermal and nonlocal Modica-Mortola functionals
Emanuele Tasso
TU Wien
Austria
Co-Author(s):    Elisa Davoli
Abstract:
In this talk, we analyze a non-isothermal and nonlocal variant of the Modica-Mortola diffuse model for phase transitions. Here the classical gradient penalization is replaced by a nonlocal singular perturbation and the double-well potential is space-dependent. Our main result is the identification of the sharp-interface limit as the width of the transition layers converges to zero. This is joint work with Elisa Davoli.