identification of a curve; approximation by FEM; convergence; mixed boundary value problem; finite element approximation
We consider the finite element approximation of the identification problem, where one wishes to identify a curve along which a given solution of the boundary value problem possesses some specific property. We prove the convergence of FE-approximation and give some results of numerical tests.
 J. Haslinger V. Horák: Identification of critical curves. Part I: Continuous case
. Apl. Mat. 35 (1990), 169-177. MR 1052737