List of Articles Open Access Article Abstract Page Full-Text 1 - Spectrum and essential spectrum of linear combinations of composition operators on the Hardy space H2 M. Haji Shaabani M. Fatehi M. Farzi Haromi Open Access Article Abstract Page Full-Text 2 - Some properties of nilpotent Lie algebras M.R. Rismanchian M. Araskhan Open Access Article Abstract Page Full-Text 3 - Balanced evaluation of suppliers performance by applying a hybrid DEMATEL-DEA approach in presence of undesirable factors M. Homayounfar A.R. Amirteimoori Open Access Article Abstract Page Full-Text 4 - Biprojectivty of Banach algebras modulo an ideal M. ghorbani H.R. rahimi Open Access Article Abstract Page Full-Text 5 - Computing a block incomplete LU preconditioner as the by-product of block left-looking A-biconjugation process Amin Rafiei Behnaz Tolue Haghighi Open Access Article Abstract Page Full-Text 6 - On Generalization of Sturm-Liouville Theory for Fractional Bessel Operator S.S. Mosazadeh Open Access Article Abstract Page Full-Text 7 - A new approach to using the cubic B-spline functions to solve the Black-Scholes equation Hossein Aminikhah Seyyed Javad Alavi Open Access Article Abstract Page Full-Text 8 - Ranking Decision Making Units based on their profit in competition to reach a standard level A. Dehnokhalaji J. Sadeghi B. Hallaji N. Soltani Open Access Article Abstract Page Full-Text 9 - Characterization of weak fixed point property for new class of set-valued nonexpansive mappings Hamid Reza Hajisharifi Open Access Article Abstract Page Full-Text 10 - Solving a new mathematical fuzzy multi-objective for supply chain of based on fuzzy necessity measure. Alireza Mansori sulaiman Iranzadeh Abdollah Hadi Open Access Article Abstract Page Full-Text 11 - presentation of a two stages method to determine the suitable benchmark and return to scale (case study: girls high school of one zone shiraz city) Javad Gerami Open Access Article Abstract Page Full-Text 12 - A revisit of a mathematical model for solving fully fuzzy linear programming problem with trapezoidal fuzzy numbers A. Ebrahimnejad