issue 1 publication date 2021-04

• Edge-coloring Vertex-weightings of Graphs
• A Trust-region Method using Extended Nonmonotone Technique for Unconstrained Optimization
• On Contact and Symplectic Lie Algeroids
• Wijsman Statistical Convergence of Double Sequences of Sets
• One-point Goppa Codes on Some Genus 3 Curves with Applications in Quantum Error-Correcting Codes
• Viewing Some Ordinary Differential Equations from the Angle of Derivative Polynomials
• On Eulerianity and Hamiltonicity in Annihilating-ideal Graphs
• Graph Clustering by Hierarchical Singular Value Decomposition with Selectable Range for Number of Clusters Members
• Surfaces Generated by Translation Surfaces of Type 1 in I^1_3
• Recognition of $L_{2}(q)$ by the Main Supergraph
• Application of Tau Approach for Solving Integro-Differential Equations with a Weakly Singular Kernel
• Tame Loci of Generalized Local Cohomology Modules
• Relative non-Normal Graphs of a Subgroup of Finite Groups
• Nearly Rational Frobenius Groups
• Some Weighted Integral Inequalities for Generalized Conformable Fractional Calculus