Journal of Operational Research in its Applications
Year:2005 | Volume:1 | Issue:6|Papers Count:5

in this paper the manner in company with changes, new progresses, fulfillment to its aims and also the express of new style and methods in order to training, talents creature and impetuses in student and effective of mathematics reasoning for them to take into have considered.

In this paper an index in order to finding cost of a unit progress and regress, according to Malmquist productivity index has presented. This index is defined regarding to cost frontier changes and cost efficiency changes which it called as cost Malmquist productivity index. Using Data Envelopment Analysis (DEA) Technique, we calculate the efficiency value and the distance any unit of cost, frontier. Using this index and also DEA models, it can be calculated to progress and regress of decision making units (DMUs), so that it able increases information of manager.

In this paper, we use a classical theorem of Hardy, Littlewood and Polya on rearrangements of functions for solving well known shortest path problem. We first introduce a special .class of variational problems. To solye this kind of problems, a classical theorem of Hardy, Littlewood and  Polya on rearrangements of functions is used to prove.the equivalence of this class of variational problems. As a consequence, solutions of this class of variational, problems are solution of shortest path problem that can be computed numerically via quadratic.programming In this paper we suggest an algorithm' for the shortest path problem when this path, called (t,F(t)) , starting from given Initial point (0,F(0)) and reaching destination (1,F(1)) while remaining between boundaries defined by (t,A(t)) and (t,B(t)). One extension of the problem can be considering shortest path surrounded by the given boundaries while a circle lies in the phase plane between two given boundaries and we should consider this circle. In the solution of Problem A useful application of this problem is optimal, battery interchange policy for solar cars.

Grading of bank branches which carry the duty 'of transfer of public investment to the bank system is unprecedented This is only possible through a system of grading that is based on latest scientific finding. Even with a precise system of grading data abnormality by its nature will lead to confusion and therefore will produce inappropriate results. The topic of this paper illustrates the impact of these abnormalities in grading results performance which has been applied in grading of a great branch of a well known commercial bank.