Numerical Solution of Fredholm Integro-differential Equations By Using Hybrid Function Operational Matrix of ‎Differentiation‎

الموضوعات : مجله بین المللی ریاضیات صنعتی

R. Jafri ¹ , R. Ezzati ² , K. ‎Maleknejad‎ ³

1 - Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran.
2 - Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran.
3 - Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran.

تاريخ الإرسال : 02 الإثنين , رجب, 1439 تاريخ التأكيد : 02 الإثنين , رجب, 1439 تاريخ الإصدار : 10 الجمعة , ذو الحجة, 1438

الکلمات المفتاحية: Fredholm integro-differential , Hybrid function, Chebyshev polynomial, Block-pulse function, Operational matrix of &amp, lrm, der,

ملخص المقالة :

In this paper‎, ‎first‎, ‎a numerical method is presented for solving a class of linear Fredholm integro-differential equation‎. ‎The operational matrix of derivative is obtained by introducing hybrid third kind Chebyshev polynomials and Block-pulse functions‎. ‎The application of the proposed operational matrix with tau method is then utilized to transform the integro-differential equations to the algebraic equations‎. ‎Finally‎, ‎show the efficiency of the proposed method is indicated by some numerical ‎examples.‎