List of Articles Open Access Article Abstract Page Full-Text 1 - Dynamic GAS Mathematical Based Modeling for Predicting and Assessing the Memory Free Value at Risk of Tehran Stock Exchange Total Index محمدابراهیم سماوی هاشم نیکومرام مهدی معدنچی زاج احمد یعقوب نژاد Open Access Article Abstract Page Full-Text 2 - Ranking Tehran Stock Exchange Industries using a Combined FCM-ELECTRE III-LA Method مجتبی موحدی مهدی همایونفر مهدی فدایی اشکیکی منصور صوفی Open Access Article Abstract Page Full-Text 3 - LIE SYMMETRIES, SELF-ADJOINTNESS, AND CONSERVATION LAWS OF THE MONG-AMPERE EQUATION زهرا مومن نژاد مهدی نجفی خواه Open Access Article Abstract Page Full-Text 4 - Assessing the value efficiency of each unit in relation to the tangent hyper plane in DEA (units including negative data with interval scale) حسین عباسیان سید علی کاظمی پور Open Access Article Abstract Page Full-Text 5 - The Investment Policy for the Sustainability of the Electricity Supply Chain: A Case in the Power Industry مژگان پورعلیزاده Open Access Article Abstract Page Full-Text 6 - Sequential Optimality Conditions for Bilevel Multiobjective Fractional Programming Problems with Extremal Value Function Laghdir Mohamed