حعفر بی آزار - ‎D‎epartment of Applied Mathematics, Faculty of Mathematical Sciences, University of Guilan, Rasht, ‎Iran‎.
- - - Department of Applied Mathematics, University Campus ۲, University of Guilan, Rasht, ‎Iran‎.
- - - Department of Mathematics, Rasht Branch, Islamic Azad University, Rasht, ‎Iran‎.

‎In this paper‎, ‎we present a computational method for solving systems of Volterra and Fredholm integral equations which is a hybrid approach‎, ‎based on the third-order Chebyshev polynomials and block-pulse functions which we will refer to as (HBV)‎, ‎for short‎. ‎The existence and uniqueness of the solutions are addressed‎. ‎Some examples are provided to clarify the efficiency and accuracy of the method‎.

‎Systems of Fredholm and Volterra integral ‎equations, ‎ Hybrid Method, Existence and uniqueness, Operational ‎Matrices