The uniqueness of a solution to the renewal type system of integral equations on the line

Abstract

We study the uniqueness of a solution to a renewal type system of integral equations z=g+F * z on the line ℝ; here z is the unknown vector function, g is a known vector function, and F is a nonlattice matrix of finite measures on ℝ such that the matrix F(ℝ) is of spectral radius 1 and indecomposable. We show that in a certain class of functions each solution to the corresponding homogeneous system coincides almost everywhere with a right eigenvector of F(ℝ) with eigenvalue 1.