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Vol. 13, no. 2, 2018

Vagner Jikia, Ilia Lomidze, New properties of Special Functions and applications.

Umer Shuaib, Muhammad Shaheryar, Waseem Asghar, On Some Characterizations of o-fuzzy subgroups.

Armend Salihu, A modern modification of Gjonbalaj-Salihu cornice determinant, transformation to semi-diagonal determinant.

Warud Nakkhasen, Bundit Pibaljommee, Intuitionistic Fuzzy k-Gamma-Hyperideals of Gamma-Semihyperrings.

S. M. Abrarov, B. M. Quine, Efficient computation of pi by the Newton--Raphson iteration and a two-term Machin-like formula.

Uzoamaka A. Ezeafulukwe, Maslina Darus, Olubunmi Abidemi Fadipe-Joseph, On Analytic Properties of a Sigmoid Function.

John Patrick Fulgencio Solano, Sudaporn Suebsung, Ronnason Chinram, On ideals of fuzzy points n-ary semigroups.

Rabah Kellil, Sum and product of Fuzzy ideals of a ring.

Garima Sharma, Amit B. Singh, Strongly r-Clean Rings.

Andreas Boukas, Picard Approximation of the Matrix Elements of Quantum Stochastic Differential Equations and Quantum Flows and Basic Error Estimates.

Emel Bicer, Cimel Tunc, New Theorems for Hyers-Ulam Stability of Lienard Equation with Variable Time Lags.

Author Index for Volume 13.