issue 1 publication date 2019-01

• A new approach for solving neutrosophic integer programming problems
• Grey prediction in linear programming problems
• A new solving approach for fuzzy flexible programming problem in uncertainty conditions
• Assessing the effectiveness of knowledge management using Analytic Network Process
• A new solving approach for fuzzy multi-objective programming problem in uncertainty conditions by ‎using semi-infinite linear programing
• On the hybrid conjugate gradient method for solving fuzzy optimization problem
• A study on Entrepreneurship and Innovation in Management
• Fuzzy revenue efficiency in sustainable supply chains