issue 26 publication date 2020-10-22

• A new multi-step ABS model to solve full row rank linear systems
• Computational Method for Fractional-Order Stochastic Delay Differential Equations
• The use of concept mapping and Vee diagram to calculate the volume by the integral
• Topological structure on generalized approximation space related to n-arry relation
• Arens regularity of triangular Banach algebras related to homomorphisms
• Modeling the problem of selecting and assigning orders to suppliers based on the Goal planning, QFD and ANP combined approach
• Evolution of the first eigenvalue of buckling problem on Riemannian manifold under Ricci flow
• Matching Integral Graphs of Small Order
• Cloud modeling of quasi - order groups on general fuzzy automata
• Estimation of cost efficiency for firms in different technologies using data envelopment analysis
• Design the bi-objective pharmaceutical supply chain network under uncertainty and considering the production, delivery, and drug perishable times
• Introducing a new inefficiency source due to inappropriate price selection in a Non-Competitive Environment in Data Envelopment Analysis (a case study in the Imam Khomeini Oil Refinery Company of Shazand in Iran)
• A Free Line Search Steepest Descent Method for Solving Unconstrained Optimization Problems