Bulinski, Alexander http://orcid.org/0000-0003-0240-3375
Kozhevin, Alexey
Funding for this research was provided by:
Lomonosov Moscow State University (Grant ”Modern problems of fundamental mathematics and mechanics”)
Lomonosov Moscow State University (Grant ”Modern problems of fundamental mathematics and mechanics”)
Article History
Received: 23 March 2019
Revised: 31 December 2019
Accepted: 8 June 2020
First Online: 1 July 2020