On a solution of a third kind mixed integro-differential equation with singular kernel using orthogonal polynomial method. (English) Zbl 1517.65131
Summary: This paper deals with the solution of a third kind mixed integro-differential equation (MIDE) in displacement type in space \(L_2[-1, 1]\times C[0, T]\), \(T < 1\). The singular kernel is modified to take a logarithmic form, while the kernels of time are continuous and positive functions. Using the separation of variables technique, we have a system of Fredholm integral equations (FIEs) that can be transformed into an algebraic system after using orthogonal polynomials. In all the previous researchers’ works, the time periods were divided, and the mixed equation transformed into an algebraic system of FIEs. While when using the separation method, we are able to obtain FIE with time coefficients, and these functions are described as an integral operator in time. Thus, we can study the behavior of the solution with the time dimension in a broader and deeper than the previous one. Some examples are given and discussed to show the performance and efficiency of the proposed methods.
MSC:
| 65R20 | Numerical methods for integral equations |
| 45B05 | Fredholm integral equations |
| 45H05 | Integral equations with miscellaneous special kernels |
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