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Existence and uniqueness results for Bitsadze- Samarskii type nonlocal boundary value problem for the semilinear elliptic equation
This paper is deal with the unique solvability of Bitsadze- Samarskii type nonlocal boundary value (NBV) problem for the semi-linear elliptic equation in a Hilbert space. For the approximate solution of this problem, rst and second order of accuracy difference schemes are presented. The convergence estimates for the solutions of …