V. B. Malyutin
Institute of Mathematics of the National Academy of Sciences of Belarus
Belarus

Малютин Виктор Борисович – доктор физико-математических наук, заведующий отделом

ул. Сурганова, 11, 220072, Минск

B. O. Nurjanov
Institute of Mathematics named after V. I. Romanovsky of the Academy of Sciences of the Republic of Uzbekistan; Karakalpak State University named after Berdakh
Uzbekistan

Berdakh O. Nurjanov – Ph. D. (Physics and Mathematics), Senior Researcher, Institute of Mathematics named after V. I. Romanovsky of the Academy of Sciences of the Republic of Uzbekistan ; Karakalpak State University named after Berdakh

9, University Str., 100174, Tashkent, Republic of Uzbekistan;
1, Ch. Abdirov Str., 230112, Nukus, Republic of Uzbekistan