Almost sure comparison of birth and death processes with application to M/M/s queueing systems
Queueing Systems: Theory and Applications
Numerical investigation of a multiserver retrial model
Queueing Systems: Theory and Applications - Special issue of queueing systems, theory and applications
Analysis of Markov Multiserver Retrial Queues with Negative Arrivals
Queueing Systems: Theory and Applications
Queueing Systems: Theory and Applications
Service station factors in monotonicity of retrial queues
Mathematical and Computer Modelling: An International Journal
A matrix-geometric approximation for tandem queues with blocking and repeated attempts
Operations Research Letters
Approximations of retrial queue with limited number of retrials
Computers and Operations Research
Unreliable M/G/1 retrial queue: monotonicity and comparability
Queueing Systems: Theory and Applications
An initiative for a classified bibliography on G-networks
Performance Evaluation
Bibliography on G-networks, negative customers and applications
Mathematical and Computer Modelling: An International Journal
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We consider several multi-server retrial queueing models with exponential retrial times that arise in the literature of retrial queues. The effect of retrial rates on the behavior of the queue length process is investigated via sample path approach. We show that the number of customers in orbit and in the system as a whole are monotonically changed if the retrial rates in one system are bounded by the rates in second one. The monotonicity results are applied to show the convergence of generalized truncated systems that have been widely used for approximating the stationary queue length distribution in retrial queues.