Geni Gupur

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In this paper, by introducing a concept called the degree of species, we obtain a set of sufficient conditions for the ultimate boundedness of nonautonomous n-species Lotka-Volterra tree systems. As a consequence, we also obtain the criteria of the existence of a globally stable equilibrium point for the autonomous Lotka-Volterra tree system. The criteria(More)
In real life, we see such queue: one encounters numerous examples of the queuing situations where all arriving customers require the main service and only some may require the subsidiary service provided by the server. This queue is called M/G/1 queue with second optional service. In 2000, K.C. Madan first considered the queue and established the(More)
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