On the well-posedness of the nonlocal boundary value problem for the differential equation of elliptic type

Well-posedness of a nonlocal boundary value difference elliptic problem

“…Such conditions usually are identified as nonlocal boundary conditions and reflect situations when the data on the domain boundary cannot be measured directly, or when the data on the boundary depend on the data inside the domain. The well-posedness of various nonlocal boundary value problems for partial differential and difference equations has been studied extensively by many researchers (see, e.g., [5][6][7][8][9][10][11][12][13][14][15][16][17][22][23][24] and the references given therein).…”

“…In the paper [10] the abstract nonlocal boundary value problem for differential equation of elliptic type…”