Stability criteria for certain delay integral equations of Volterra type

In this paper we study the asymptotic stability of the solution of the following delay integral equation of Volterra type: y(x) = psi(0) + alpha integral(0)(x) (a(0) + a(1)(x - s))y(s)ds + (1 - alpha) integral(0)(x) (a(0) + a(1)(x - s))y(s - tau)ds, y(x) = psi(x), -tau less than or equal to <0, where tau > 0 is constant and 0 less than or equal to alpha less than or equal to 1. 1. Stability criteria are provided for certain alpha's and the parameters alpha(0), alpha 1 and tau. The aim of this study is to understand the effect of the delay on the asymptotic stability of the solution of Volterra integral equations. As such the parameters alpha and 1 - alpha appear with the same kernel in both integrals of the equation. We also provide four algorithmic stability tests and include several examples and stability regions for certain values of the parameters alpha, a(0), a(1) and tau.