Turkic World Mathematical Society (TWMS) Journal of Pure and Applied Mathematics was founded in 2010 by Turkic World Mathematical Society and Institute of Applied Mathematics of Baku State University. TWMS was founded in 1999 and unites mathematicians from Turkey, Kazakhstan, Azerbaijan, Kyrgyzstan, Uzbekistan, Russia, Iran, China, USA and European countries. The creation of TWMS played an important role in the consolidation of the scientists’ potential and research centers of the Turkic world working in this field. The establishment of the journal “TWMS Journal of Pure and Applied Mathematics” is an important practical step of such consolidation, as it provides new opportunities for the publication of the best achievements of scientists and mathematicians of Turkic countries, increasing of their recognition in the world of science and close cooperation with the International scientific community. This semiannually Journal publishes high-quality peer-reviewed research papers on the broad range of applied and computational mathematics.

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Officially cited as: TWMS J. Pure Appl. Math.
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Impact Factor: 2.722 (2021)*
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5-year Impact Factor: 1.846
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* Journal Citation Reports ®️, Clarivate Analytics
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ISSN 2076-2585 (print), ISSN 2219-1259 (online)
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Journal Publisher:

Baku State University Institute of Applied Mathematics,
Turkic World Mathematical Society

Z. Khalilov str., 23, AZ 1148,

Baku, Azerbaijan

Contact tel.:

+994 12 5391595

+994 12 5114019

**Editor in-Chief**

**Aliev, Fikret**Institute of Applied Mathematics, Baku State University, Baku, Azerbaijan

**Managing Editor**

**Mammadova, Gamar**Institute of Applied Mathematics, Baku State University, Baku, Azerbaijan

**International Advisory Board**

**Ashyralyev, Allaberen**Department of Mathematics, Bahcesehir University, 34353, Istanbul, Turkey

*Applied Mathematics, PDEs, Numerical Functional Analysis, Stochastic Differential Equations*

**Ayupov, Shavkat**Department of Mathematics, Academy of Sciences of Uzbekistan, V.I. Romanovskiy Institute of Mathematics, Tashkent, Uzbekistan

*Operator Algebras, Noncommutative Integration, Derivations, Nonassociative Algebras*

**Bakhtizin, Ramil**Ufa State Petroleum Technological University,Ufa, Republic of Bashkortostan, Russia,

*Engineering, Environmental Science, Materials Science*

**Başar, Tamer**Coordinated Science Laboratory, University of Illinois, Urbana, IL 61801, USA.

*Control Theory, Communications, Game Theory, Networks, Optimization*

**Borubaev, Altay**Mathematics, Informatics and Cybernetics Faculty, Jusup Balasagyn Kyrgyz National University, Bishkek, Kyrgyzstan

*Topology, Analysis*

**Guliyev, Vagif**Institute of Applied Mathematics, Baku State University, Baku, Azerbaijan

*Real and Harmonic Analysis, Function Spaces, PDE*

**Kabanikhin, Sergey**Laboratory of Mathematical Problems of Geophysics, Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk, Russia

*Integral and Differential Equations, Numerical Methods, Inverse and ill-posed Problems*

**Kalmenov, Tynysbek**Institute of Mathematics and Mathematical Modeling, Almaty, Kazakhstan

*Spectral Theory; Boundary Value Problems*

**Mamedov, Yusif**Faculty of Applied Mathematics and Cybernetics, Baku State University, Baku, Azerbaijan.

*Spectral Theory; Boundary Value Problems*

**Mardanov, Misir**Institute of Mathematics and Mechanics Azerbaijan National Academy of Sciences, Baku, Azerbaijan

*Control Theory, Optimization*

**Nigmatulin, Robert**P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia

*Engineering, Environmental Science, Materials Science*

**Otelbaev, Mukhtarbai**Institute of Mathematics and Mathematical Modeling, Almaty, Kazakhstan

*Spectral Theory of Operators*

**Srivastava, Hari Mohan**Department of Mathematics and Statistics, University of Victoria,Victoria, British Columbia V8W 3R4, Canada

*Special Functions, Number Theory, Integral Transforms, Fractional Calculus, Applied Analysis*

**Üstünel, Ali Suleyman**Mathematics Departement, Ihsan Dogramaci Bilkent University, Cankaya, Ankara, Turkey.

*Stochastic Analysis, Probability, Functional Analysis*

**Editorial Board**

**Aliev, Nihan**Faculty of Applied Mathematics and Cybernetics, Baku State University, Baku, Azerbaijan

*Differential Equations, Boundary Value Problems, Asymptotic Methods*

**Aliyev, Rovshan**Faculty of Applied Mathematics and Cybernetics, Baku State University, Baku, Azerbaijan

*Stochastic processes, insurance risk models, random walks*

**Aliguliyev, Ramiz**Institute of Information Technology, Azerbaijan National Academy of Sciences, Baku, Azerbaijan

*Text Mining, Big Data, Analytics, Social Networks, Scientometrics*

**Alimov, Shavkat**National University of Uzbekistan, Tashkent, Uzbekistan

*Differential equations, Spectral Theory*

**Aida-zade, Kamil**Institute of Control Systems, Azerbaijan National Academy of Sciences, Baku, Azerbaijan

*Control Theory, Optimization*

**Bagirov, Adil**Federation University Australia, Ballarat, Australia

*Optimization, Nonsmooth optimization, Global optimization, Data Mining*

**Bayramov, Sadi**Faculty of Mechanics and Mathematics, Department of Algebra and Geometry, Baku State University, Baku, Azerbaijan

*Fuzzy soft topological spaces*

**Basar, Feyzi**Department of Primary Mathematics Teacher Education, İnönü University, Central Campus, Malatya, Turkey

*Analysis, Functional Analysis, Summability Theory, Sequence Spaces*

**Chekeev, Asylbek**Mathematics, Informatics and Cybernetics Faculty, Jusup Balasagyn Kyrgyz National University, Bishkek, Kyrgyzstan

*Topology, Analysis*

**Eldem, Vasfi**Faculty of Engineering Building, Okan University, Istanbul, Turkey

*Control Theory, Optimization*

**Ergut, Mahmut**Department of Mathematics, Namik Kemal University, Tekirdag, Turkey

*Differential Geometry*

**Hasanov, Elman**Faculty of Arts and Sciences, Department of Mathematics, Isik University, Istanbul, Turkey

*Abstract Analysis*

**Ibragimov, Akif**Department of Mathematics and Statistics, Texas Tech University, Lubbock, Texas, USA

*Applied Mathematics, Partial Differential Equation, Mathematical Biology, Bio Medical Application*

**Iskenderov, Nizameddin**Faculty of Mechanics and Mathematics, Baku State University, Baku, Azerbaijan

*Functional Analysis, PDEs*

**Ivaz, Karim**Faculty of Mathematical Sciences, University of Tabriz, Tabriz, Iran

*Numerical Analysis, Fuzzy Differential Equations*

**Karapinar. Erdal**China Medical University Hospital, China Medical University, Taichung, Taiwan

*Functional Analysis, Operator Theory, Linear Topological Invariants, Fixed Point Theory*

**Khusainov, Denis**Department of Cybernetics, Taras Shevchenko National University of Kyiv, Kiev, Ukraine

*Stability theory, Control Theory, Differential Equations*

**Mirzoev, Sabir**Faculty of Mechanics and Mathematics, Baku State University, Baku, Azerbaijan

*Differential Equation, Spectral Theory*

**Mustafaev, Heybetgulu**Faculty of Science, Department of Mathematics,Yuzuncu Yil Univ, Van, Turkey

*Functional Analysis, Theory of Functions*

**Nasibov, Efendi**Department of Computer Science, Dokuz Eylul University, Izmir, Turkey

*Fuzzy Sets and Systems, Soft Computing, Discrete and Combinatorial Optimization, Software Engineering, Decision Making Problems*

**Ozbay, Hitay**Electrical and Electronics Engineering, Ihsan Dogramaci Bilkent University, Ankara, Turkey

*Systems and Control*

**Panakhov, Etibar**Institute of Applied Mathematics, Baku State University, Baku, Azerbaijan

*Inverse Problems, Spectral Theory, Potential Theory*

**Petkov, Petko**Faculty of Chemistry and Pharmacy, University of Sofia, Sofia, Bulgaria

*Control Theory, Robust Control, Numerical Methods, Software for Control Systems*

**Rashidi, Mohammad Mehdi**Shanghai Key Lab of Vehicle Aerodynamics, Tongji University, Shanghai, China.

*Multiphase Flows, Micro Fluidics, Wind Tunnel, Heat and Mass Transfer*

**Ruzhansky, Michael**Department of Mathematics: Analysis, Logic and Discrete Mathematics, School of Mathematical Sciences, Ghent University, Ghent, Belgium

*PDEs, Microlocal Analysis, Harmonic Analysis, Pseudo-differential Operators*

**Rzayev, Ramin**Institute of Control Systems, Azerbaijan National Academy of Sciences Baku, Azerbaijan

*System analysis, management and information processing, Mathematical analysis*

**Sadybekov, Makhmud**Department of Applied Research, Institute of Mathematics & Mathematical Modeling, Almaty, Kazakhstan

*Differential Equations, PDEs, Functional Analysis*

**Sadullaev, Azimbay**Faculty of Mechanics and Mathematics, National University of Uzbekistan, Tashkent, Uzbekistan

*Differential Equations, PDEs, Inverse Problems*

**Salimov, Arif**Faculty of Mechanics and Mathematics, Department of Algebra and Geometry, Baku State University, Baku, Azerbaijan

*Differential Geometry and Tensor Analysis*

**Shokri, Ali**Department of Mathematics, Faculty of Basic Sciences, University of Maragheh, Maragheh, Iran

*Numerical Analysis, Differential Equations*

**Temirbekov, Nurlan**Kazakhstan Engineering and Technology University, Almaty, Kazakhstan

*Control Theory, Applied Mathematics*

**Tunik, Anatoly**Institute of Electronics and Control Systems of National Aviation University, Kiev, Ukraine

*Automatic Control Systems, Integrated Navigation Systems, Flight Control*

**Tosun, Murat**Department of Mathematics, Sakarya University, Sakarya, Turkey

*Geometry*

**Tsurkov, Vladimir**Federal Research Center "Computer Science and Control" of Russian Academy of Sciences, Moscow, Russia

*Operation Research, Control Theory, Large Scale Optimization*

**Zafer, Agacik**Department of Mathematics, College of Engineering and Technology, American University of the Middle East, Egaila, Kuwait

*Differential Equations, Difference equations, Time Scale Calculus*

**Zakirov, Sumbat**Institute of Oil and Gas Problems of the Russian Academy of Sciences, Moscow, Russia

*Applied Mathematics*

**Executive Editor**

**Huseynova, Nargiz**Institute of Applied Mathematics, Baku State University, Baku, Azerbaijan

**Editorial Assistants**

**Namazov, Atif**Institute of Applied Mathematics, Baku State University, Baku, Azerbaijan

**Rustamova, Lamiya**Faculty of International Relations and Economics, Baku State University, Baku, Azerbaijan

Copy edited by **Ruzhansky, Michael (Ghent, Belgium), Shokri, Ali (Maragheh, Iran)**

**Impact Factor: 2.722 (2021), 5-year Impact Factor: 1.846, Journal Citation Reports TM, Clarivate Analytics**

**Indexed in: ***Science Citation Index Expanded*

**Abstracted in: ***Mathematical Reviews, Zentralblatt Math, VINITI, E-Letter, NA-Digest *

**Honorary President**

Mardanov, Misir (Azerbaijan)

Borubaev, Altay (Kyrgyzstan)

**President**

**Vice-presidents**

Bokayev, Nurzhan (Kazakhstan)

Panahov, Etibar (Turkey)

Azamov, Abdulla (Uzbekistan)

Meredova, Maral (Turkmenistan)

**Steering Board**

Ergut, Mahmut (Turkey)

Guliyev, Vagif (Azerbaijan)

Kerimbekov, Akylbek (Kyrgyzstan)

Kalmenov, Tynysbek (Kazakhstan)

Tosun, Murat (Turkey)

Zhaynakov, Amanbek (Kyrgyzstan)

Aripov, Mirsaid (Uzbekistan)