Editor in Chief

Tuncer Acar, PhD
Selçuk University, Türkiye
Research interests: Real and Functional Analysis, Approximation Theory, Summability, Special Functions, Quantum Calculus.

Managing Editor

Osman Alagöz, PhD
Bilecik Şeyh Edebali University, Türkiye
Research interests: Fixed point theory, Sampling theory.

Editorial Board

Francesco Altomare, PhD
University of Bari Aldo Moro, Italy
Research interests: Real and Functional Analysis, Operator Theory, Approximation Theory.


Ali Aral, PhD
Kırıkkale University, Türkiye
Research interests: Real and Functional Analysis, Approximation Theory, Integral operators.


Raul Curto, PhD
University of Iowa, USA
Research interests: Multivariable operator theory, C*-algebras, Classical theory of moments, Several complex variables.


Feng Dai, PhD
University of Alberta, Canada
Research interests: Harmonic Analysis, Approximation Theory, Orthogonal Expansions, Cubature formulas on the sphere.


Borislav Radkov Draganov, PhD
Sofia University, Bulgaria
Research interests: Approximation Theory and Harmonic Analysis.


Harun Karslı, PhD
Abant İzzet Baysal University, Türkiye
Research interests: Nonlinear Functional Analysis, Linear and Nonlinear Integral operators, Singular Integral operators, Inequalities, Calculus of variation.


Mohamed A. Khamsi, PhD
University of Texas at El Paso, USA
Research interests: Real and Functional Analysis, Mappings, Fixed Point Theory.


Poom Kumam, PhD
King Mongkut’s University of Technology Thonburi, Thailand
Research interests: Real and Functional Analysis, Fixed Point Theory and Nonlinear Analysis, Numerical Analysis, Optimization.


David R. Larson, PhD
Texas A&M University, USA
Research interests: Functional Analysis, Operator Algebras, Operator Theory, Frame Theory.


Anthony To-Ming Lau, PhD
University of Alberta, Canada
Research interests: Locally compact groups, Nonlinear Fixed Point Theory, Banach algebras, Harmonic Analysis, Amenability.


Peter R. Massopust, PhD
Technische Universität München, Germany
Research interests: Abstract and Applied Harmonic Analysis, Functional Analysis,Wavelets, Splines, and Frames, Approximation and Interpolation Theory, Fractal Analysis and Fractal Geometry.


Donal O'Regan, PhD
National University of Ireland, Ireland
Research interests: Nonlinear Analysis, Fixed Point Theory.


Lars-Erik Persson, PhD
UiT The Artic University of Norway, Norway
Research interests: Fourier analysis, Function spaces, Inequalities, Interpolation theory and related problems connected to convexity and quasi-monotone functions.


Ioan Raşa, PhD
Technical University of Cluj-Napoca, Romania
Research interests: Real and Functional Analysis, Approximations and Expansions, Inequalities, Probability theory, Statistics and Stochastic processes.


Salvador Romaguera, PhD
Universitat Politecnica de Valencia, Spain
Research interests: Real and Functional Analysis, Fixed Point Theory and Nonlinear Analysis.


Wataru Takahashi, PhD
Tokyo Institute of Technology, Japan, (Emeritus)
Research interests: Nonlinear Functional Analysis, Set Valued Analysis, General mathematics including Probability theory/ Statistical mathematics.


Gianluca Vinti, PhD
University of Perugia, Italy
Research interests: Approximation theory, Orlicz spaces, Functions, Neural networks, Linear combinations.


Kehe Zhu, PhD
State University of New York, USA
Research interests: Operators on holomorphic function spaces, Complex analysis, Operator theory and operator algebras.

Editorial Staff

Fırat Özsaraç, MSc
Kırıkkale University, Türkiye


Metin Turgay
Selçuk University, Türkiye