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Approximate solution of BVPs for 4th-order ides by using RKHS method. (English) Zbl 1264.45012
Summary: Reproducing kernel Hilbert space method is applied to approximate the solution of two-point boundary value problems for fourth-order integro-differential equations. The analytical solution is represented in the form of series in the reproducing kernel space. The n-term approximation is obtained and is proved to converge to the analytical solution. Moreover, the proposed method has an advantage that it is possible to pick any point in the interval of integration and as well the approximate solutions and its all derivatives up to order four will be applicable. Numerical examples are given to demonstrate the computation efficiency of the presented method. Results obtained by the method indicate the method is simple and effective.
MSC:
45J05Integro-ordinary differential equations
47B32Operators in reproducing-kernel Hilbert spaces
34K28Numerical approximation of solutions of functional-differential equations