The Wiener-Hopf Equation with Probability Kernel and Submultiplicative Asymptotics of the Inhomogeneous Term

We consider the inhomogeneous Wiener-Hopf equation whose kernel is a nonarithmetic probability distribution with positive mean. The inhomogeneous term behaves like a submultiplicative function. We establish asymptotic properties of the solution to which the successive approximations converge. These properties depend on the asymptotics of the submultiplicative function.