Numerical solutions of non-linear volterra integral equations of the second kind
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Abstract
Bu tezde lineer-olmayan ikinci çeşit Volterra integral denklemlerinin nümerik integrasyon (Ikizkenar kuralı and Simpson kuralı), Runge-Kutta metodu (klasik üçüncü-derece, optimal üçüncü-derece, Bu methotlar varlığı ve diferensiyel denklemler ile integral problemlerinin çözülmesinde kolaylıkla kullanılmakta olduğu bilinmektedir, ancak özellikle lineer-olmayan integral denklemlere uygulamasında çeşitli zorluklar ortaya çıkmaktadır, çünkü lineer olmayan terimler integralin çekirdeğinde mevcuttur. Bu nedenle söz konusu methotların ve teknikler üzerinde, lineer-olmayan integral denklemlere de uygulanabilecek biçimde, bazı düzenlemeler yapılma ihtiyacı olduğu görülmüştür. In this thesis it will be shown how one can solve one of the types of integral equation, non-linear Volterra Integral Equations (VIEs) of the second kind, by certain methods: numerical integration (Trapezoidal rule and Simpson's rule), Runge-Kutta methods (classic third-order, optimal third-order, fourth-order, and classic fourth-order), classic spline functions (quadratic and cubic classic spline functions), and B-spline functions (first-order, second-order, third-order, and fourth-order). It will also be shown how one can convert one of the methods to another one.These methods exist and are easy to use to solve differential equations and integration problems, but it is difficult to apply them to integral equations, especially non-linear integral equations, because the known function occurs into kernel of the integral. Therefore it is needed to modify these methods and techniques to apply them to non-linear integral equations.
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