A note on some relations in the queue Glx/M/c
Operations Research Letters
A single server priority queue with server failures and queue flushing
Operations Research Letters
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We develop for the queue M^x/M/c an upper bound for the mean queue length and lower bounds for the delay probabilities (that of an arrival group and that of an arbitrary customer in the arrival group). An approximate formula is also developed for the general bulk-arrival queue GI^x/G/c. Preliminary numerical studies have indicated excellent performance of the results.