Application of modified hat functions for solving nonlinear quadratic integral equations

Iranian Journal of Numerical Analysis and Optimization

مقاله 3، دوره 6، شماره 2 - شماره پیاپی 10، آذر 2016، صفحه 65-84   

نوع مقاله: Research Article

شناسه دیجیتال (DOI): 10.22067/ijnao.v6i2.46565

نویسندگان

F. Mirzaee^* ؛ E. Hadadiyan

Faculty of Mathematical Sciences and Statistics, Malayer University, Malayer, Iran.

چکیده

A numerical method to solve nonlinear quadratic integral equations (QIE) is presented in this work. The method is based upon modification of hat functions (MHFs) and their operational matrices. By using this approach and the collocation points, solving the nonlinear QIE reduces to solve a nonlinear system of algebraic equations. The proposed method does not need any integration for obtaining the constant coefficients. Hence, it can be applied in a simple and fast technique. Convergence analysis and associated theorems are considered. Some numerical examples illustrate the accuracy and computational efficiency of the proposed method.

کلیدواژه‌ها

Modication of hat functions؛ Nonlinear quadratic integral equation؛ Vector forms؛ Operational matrix؛ error analysis

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