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Based on ranking of fuzzy numbers which deals with fuzzy-valued multi-objective programming problem and the modified crisp model, a modified approach is proposed. Also, two algorithms that play a pivotal role in the proposed method are introduced. The first one returns a ranking function to a given fuzzy number and the second algorithm uses the modified crisp model to deliver a Pareto optimal solution...
A new closed-form explicit expression is derived for the probability den sity function of the length of a busy period starting with i customers in an M/M/1/K queue, where K is the capacity of the system. The density function is given as a weighted sum of K negative exponential distributions with coefficients calculated from K distinct zeros of a polynomial that involves Chebyshev polynomials of the...
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