1st International Conference on Analysis and Applied Mathematics (ICAAM), Gümüşhane, Turkey, 18 - 21 October 2012, vol.1470, pp.114-117
The unique solvability of Bitsadze-Samarskii type nonlocal boundary value problems for the semi-linear elliptic equations in a Hilbert space is investigated. Applicability of these results to nonlinear elliptic equation is discussed.