Autors: Lazarova, M. D., Minkova, L.D. Title: Non-central Polya-Aeppli process and ruin probability Keywords: Polya-Aeppli process, pure birth process, ruin probability Abstract: In this paper we introduce a stochastic process which is a sum of Pólya-Aeppli process and homogeneous Poisson process and call it a Non-central Pólya-Aeppli process (NPAP). The probability mass function, recursion formulas and some properties are derived. As application we consider a risk model with NPAP counting process. The joint distribution of the time to ruin and deficit at the time of ruin is derived. The differential equation of the ruin probability is given. As example we consider the case of exponentially distributed claims. References Issue
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