issue 4 publication date 2011-12-01

• Fuzzy Galerkin method for solving Fredholm integral equations with error analysis
• Evaluation the efficiency of DMU's with PCA and an application in real data set of Iranian banks
• Non convex technologies and economic efficiency measure with imprecise data
• A solution of Volterra-Hamerstain integral equation in partially ordered sets
• Convergence of iterative methods applied to Burgers-Huxley equation
• Solving multi objective linear Bilevel multi follower programming problem
• Sub units chain in the DEA
• Malmquist Productivity Index for Two-stage Structures and its Applications in Bank ‎Branches