Abstract

In this paper, we study a functional equation for generating functions of the form f(z) = g(z) sum _{i=1}^M p_i f(alpha _i(z)) + K(z), viz. a recursion with multiple recursive terms. We derive and analyze the solution of this equation for the case that the alpha _i(z) are commutative contraction mappings. The results are applied to a wide range of queueing, autoregressive and branching processes.

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