MATHEMATICAL METHODS IN THE APPLIED SCIENCES, cilt.36, ss.936-955, 2013 (SCI İndekslerine Giren Dergi)
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
The BitsadzeSamarskii type nonlocal boundary value problem d2u(t)dt2+Au(t)=f(t),0H is considered. Here, f(t) be a given abstract continuous function defined on [0,1] with values in H, phi and be the elements of D(A), and j are the numbers from the set [0,1]. The well-posedness of the problem in Holder spaces with a weight is established. The coercivity inequalities for the solution of the nonlocal boundary value problem for elliptic equations are obtained. The fourth order of accuracy difference scheme for approximate solution of the problem is presented. The well-posedness of this difference scheme in difference analogue of Holder spaces is established. For applications, the stability, the almost coercivity, and the coercivity estimates for the solutions of difference schemes for elliptic equations are obtained. Mathematical Methods in the Applied Sciences. Copyright (c) 2012 John Wiley & Sons, Ltd.