SARAJEVO JOURNAL OF MATHEMATICS ISSN 1840-0655   (Printed edition) ISSN 2233-1964   (Online edition)

## Contents of  Vol. 15, No. 1

 In Memoriam Prof. Dr. Harry I. Miller   (1939 - 2018) 3 Arthur W. Apter Tall, Strong, and Strongly Compact Cardinals 7 Mohamed Bezziou, Zoubir Dahmani, and Amina Khameli On Some Double Weighted Fractional Integral Inequalities 23 Steven G. From, and Silvestru S. Dragomir Some New Refinements of Jensen's Discrete Inequality 37 Sami Rebhi Equivalence of K-Functionals and Modulus of Smoothness Generated by The  $q$- Rubin Operator 49 Ömer Kişi $\mathcal{I}_{2}$-Asymptotically Lacunary Statistical Equivalence of Weight $g$ of  Double Sequences of Sets 57 Belkacem Chaouchi, and Marko Kostić On the Study of an Initial Value Problem for a Second Order Differential Equation Set in a Singular Cylindrical Domain 67 Gabdolla Akishev On Orders of Approximation Functions of Generalized Mixed Smoothness in Lorentz Spaces 81 George A. Anastassiou Multivariate Approximation with Rates by Perturbed Kantorovich-Shilkret Neural Network Operators 97 Emre Taş, and Tuğba Yurdakadim Variational Approximation for Modified Meyer-König and Zeller Operators 113

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