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Bounded truncation error for long-run averages in infinite Markov chains

Published online by Cambridge University Press:  30 March 2016

Hendrik Baumann*
Affiliation:
Clausthal University of Technology
Werner Sandmann*
Affiliation:
University of Derby
*
∗ Postal address: Department of Applied Stochastics and Operations Research, Clausthal University of Technology, Erzstr. 1, D-38678 Clausthal-Zellerfeld, Germany. Email address: hendrik.baumann@tu-clausthal.de
∗∗ Postal address: School of Computing and Mathematics, University of Derby, Kedleston Road, Derby DE22 1GB, UK.
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Abstract

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We consider long-run averages of additive functionals on infinite discrete-state Markov chains, either continuous or discrete in time. Special cases include long-run average costs or rewards, stationary moments of the components of ergodic multi-dimensional Markov chains, queueing network performance measures, and many others. By exploiting Foster-Lyapunov-type criteria involving drift conditions for the finiteness of long-run averages we determine suitable finite subsets of the state space such that the truncation error is bounded. Illustrative examples demonstrate the application of this method.

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Type
Research Papers
Copyright
Copyright © 2015 by the Applied Probability Trust