Ordinary and generalized Green's functions for the second order discrete nonlocal problems.

In this paper, we investigate the properties of a generalized Green's function describing the minimum norm least squares solution for a second order discrete problem with two nonlocal conditions. The properties obtained of a generalized Green's function resemble analogous properties of an ordinary Green's function that describes the unique exact solution if it exists. Several features are illustrated by examples. [ABSTRACT FROM AUTHOR]