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Current results and open questions on PH and MAP characterization Bodrog, Levente Heindl, Armin Horváth, Gábor Telek, Miklós Horváth, András PH distribution ME distribution MAP MEP Stochastic processes with matrix exponential kernels have a wide range of applications due to the availability of efficient matrix analytic methods. The characterization of these processes is in progress in recent years. Basic questions like the flexibility, the degree of freedom, the most efficient (canonical) representation of these models are under study. The presentation collects a set of available results and related open questions. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Levente Bodrog and Armin Heindl and Gábor Horváth and Miklós Telek and András Horváth 2008 Is Part Of Dagstuhl Seminar Proceedings, Volume 7461, Numerical Methods for Structured Markov Chains (2008) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/DagSemProc.07461.5 urn:nbn:de:0030-drops-14010 https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.07461.5 eng https://creativecommons.org/licenses/by/4.0/legalcode