M. Abtahi, R. Pourgholi, A. Shidfar
Nonlinear Analysis - , 74, 2462–2467 - February, 2011 - .
Publication year: 2011

Abstract

The problem of identifying the coefficient in a square porous medium is considered. It is shown that under certain conditions of data f,g, and for a properly specified class A of admissible coefficients, there exists at least one a∈A such that (a,u) is a solution of the corresponding inverse problem.