NUMERICAL SOLUTION OF DELAY INTEGRAL EQUATIONS BY USING BLOCK PULSE FUNCTIONS ARISES IN BIOLOGICAL SCIENCES

محورهای موضوعی : فصلنامه ریاضی

M. Nouri ¹ (Department of Mathematics, South Tehran Branch, Islamic Azad University, Tehran, Iran)
K. Maleknejad ² (Department of Mathematics, Iran University of Science and Technology, Narmak, Tehran, Iran)

تاریخ دریافت : 1395/04/23 تاریخ پذیرش : 1395/04/23 تاریخ انتشار : 1395/04/11

کلید واژه: Block pulse functions, Operational matrix, Integral equations with time delay, Delay operational matrix.Block pulse functions, Delay operational matrix,

چکیده مقاله :

This article proposes a direct method for solving three types of integral equations with time delay. By using operational matrix of integration, integral equations can be reduced to a linear lower triangular system which can be directly solved by forward substitution. Numerical examples shows that the proposed scheme have a suitable degree of accuracy.