issue 3 publication date 2020-06-01

• merge cover ijfs- vol.17-no.3 June 2020
• A new quadratic deviation of fuzzy random variable and its application to portfolio optimization
• New optimality conditions for multiobjective fuzzy programming problems
• Extended and infinite ordered weighted averaging and sum operators with numerical examples
• Super- and sub-additive transformations of aggregation functions from the point of view of approximation
• An extended hesitant group decision-making technique based on the prospect theory for emergency situations
• Trend analysis in L-fuzzy contexts with absent values
• Using necessarily weak efficient solutions for solving a biobjective transportation problem with fuzzy objective functions coefficients
• The left (right) distributivity of semi-t-operators over 2-uninorms
• Hesitant q-rung orthopair fuzzy aggregation operators with their applications in multi-criteria decision making
• Rule-based joint fuzzy and probabilistic networks
• Interpolating time series based on fuzzy cluster analysis problem
• The role of states in triangle algebras
• Complex fuzzy Hv-subgroups of an Hv-group
• Power allocation rules under fuzzy behavior and multicriteria situations
• merge of translation vol.17- No.3 June 2020