TITLE: Variations of the sharp interfaces in multiphase problems

ABSTRACT: During recent decades, there has been a tremendous growth of activity on multi-phase problems, e.g. multiphase fluids. In most such models, different phases are separated by a sharp interface. This talk aims at introducing some basic geometric tools for taking first and second variations of the sharp interfaces in variational multiphase problems. The talk required no differential geometry background.

This is the first of a series of talks that form a working seminar.