Finite dimensional approximate bifurcation for obstacle problems*
Lei Jin-gan, Yiqiang Ren, Chunlei Liu · Numerical Functional Analysis and Optimization · 1996
Some numerical methods for discrete obstacle problems have been discussed by several authors. In this paper we are concerned with the finite dimensional approximation theory for obstacle problems, some existence theorems of bifurcation points are given, the convergence of projective approximate method is discussed