, Vasyl’ Stus Donetsk National University, Vinnytsia, Ukraine (Ukraine)
, Vasyl’ Stus Donetsk National University, Vinnytsia, Ukraine
, Institute of Mathematics, Cracow University of Technology, Krakow, Poland (Poland)
, Department of Mathematics, Kamianets-Podilskyi Ivan Ohienko National University, Kamianets-Podilskyi, Ukraine (Ukraine)
, Department of Mechanics and Mathematics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
, Department of Information Protection, Vinnytsia National Technical University, Vinnytsia, Ukraine
, School of Mathematics and Statistics, University of Sheffield, Sheffield, UK (United Kingdom)
, Faculty of Programming, Computer and Telecommunication Systems, Khmelnytskyi National University, Khmelnytskyi, Ukraine (Ukraine)
, Department of Computer Engineering and Systems Programming, Khmelnytskyi National University, Khmelnytskyi, Ukraine
, Department of Number Theory, Institute of Mathematics of the National Academy of Sciencesof Belarus, Minsk, Belarus (Belarus)
, Department of Algebra, Uzhhorod National University, Uzhhorod, Ukraine (Ukraine)
, Pidstryhach Institute for Applied Problems of Mechanics and Mathematics National Academy of Sciences of Ukraine, Lviv, Ukraine
, Department of Mathematics and Physics, Scientific High School "G.B. Grassi", Latina, Italy (Italy)
, Mechanics and Mathematics Faculty, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine (Ukraine)
, Institute of Mathematics of NAS of Ukraine, Kyiv, Ukraine
, Faculty of Mathematics, Uzhhorod National University, Uzhhorod, Ukraine
, Department of Mathematical Sciences, United Arab Emirates University, Al Ain, United Arab Emirates (United Arab Emirates)
, UAEU, Al Ain, United Arab Emirates
, Department of Geometry and Algebra, Oles Honchar Dnipro National University, Dnipro, Ukraine (Ukraine)
, Department of Mathematics, Vinnytsia National Technical University, Vinnytsia, Ukraine
, Faculty of Mechanics and Mathematics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
, State University Dimitrie Cantemir, Chisinau Moldova (Moldova, Republic of)
, Ivan Franko National University of Lviv, Lviv, Ukraine (Ukraine)
, Lviv Regional Institute for Public Administration of the National Academy for Public Administration under the President of Ukraine, Lviv, Ukraine
, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

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