I. Yu. Rebrova
Tula State L.N. Tolstoy Pedagogical University
Russian Federation

Rebrova Irina Yuryevna — candidate of physical and mathematical Sciences, associate professor, dean of the faculty of mathematics, physics and computer science

V. N. Chubarikov
M.V. Lomonosov Moscow State University
Russian Federation

Chubarikov Vladimir Nikolaevich — doctor of physical and mathematical sciences, professor, head of the department of mathematical and computer methods of analysis, dean of the mechanics and mathematics faculty

N. N. Dobrovolsky
Tula State University
Russian Federation

Dobrovolsky Nikolai Nikolaevich — candidate of physical and mathematical sciences, assistant of the department of applied mathematics and computer science

кандидат физико-математических наук, старший научный сотрудник, Геофизический центр РАН

M. N. Dobrovolsky
Geophysical centre of RAS
Russian Federation

Dobrovolsky Mikhail Nikolaevich — candidate of candidate of physical and mathematical sciences, senior researcher