relation: http://eprints.zu.edu.ua/13404/ title: Asymptotic expansion for transport processes in semi-Markov media creator: Pogoruі, А. А. creator: Rodríguez-Dagnіno, Ramón М. subject: Mathematical Analysis description: In this paper we study asymptotic expansions for a solution of the singularly perturbed equation for a functional of a semi-Markov random evolution on the line. By using the method for solutions of singularly perturbed equations, we obtain the solution in the form of a series of regular and singular terms. The first regular term satisfies a diffusion-type equation, and the first singular term is a semigroup with the infinitesimal operator of the respective related bivariate process. Each regular and singular term can be calculated recursively. date: 2010 type: Article type: PeerReviewed format: text language: uk identifier: http://eprints.zu.edu.ua/13404/1/TViMSasymptotic%20expansion%20for.pdf identifier: Pogoruі, А. А. and Rodríguez-Dagnіno, Ramón М. (2010) Asymptotic expansion for transport processes in semi-Markov media. Theor. Probability and Math. Statist. (83). language: english