Discrete and Continuous Models and Applied Computational ScienceDiscrete and Continuous Models and Applied Computational Science2658-46702658-7149Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)2470210.22363/2658-4670-2020-28-3-205-215Research ArticleOn the rate of convergence for a class of Markovian queues with group servicesKryukovaAnastasia L.<p>Lecturer of Department of Applied Mathematics</p>kryukovaforstudents@gmail.comVologda State University1512202028320521528092020Copyright © 2020, Kryukova A.L.2020<p>There are many queuing systems that accept single arrivals, accumulate them and service only as a group. Examples of such systems exist in various areas of human life, from traffic of transport to processing requests on a computer network. Therefore, our study is actual. In this paper some class of finite Markovian queueing models with single arrivals and group services are studied. We considered the forward Kolmogorov system for corresponding class of Markov chains. The method of obtaining bounds of convergence on the rate via the notion of the logarithmic norm of a linear operator function is not applicable here. This approach gives sharp bounds for the situation of essentially non-negative matrix of the corresponding system, but in our case it does not hold. Here we use the method of differential inequalities to obtaining bounds on the rate of convergence to the limiting characteristics for the class of finite Markovian queueing models. We obtain bounds on the rate of convergence and compute the limiting characteristics for a specific non-stationary model too. Note the results can be successfully applied for modeling complex biological systems with possible single births and deaths of a group of particles.</p>queuing systemMarkovian queuesforward Kolmogorov systemrate of convergencelimiting characteristicsсистема массового обслуживаниямарковский процесспрямая система Колмогороваскорость сходимостипредельные характеристики<ol>
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