Ershkov, Sergey http://orcid.org/0000-0002-6826-1691
Rachinskaya, Alla
Article History
Received: 21 August 2020
Accepted: 20 October 2020
First Online: 9 November 2020
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: In this research, Dr. Sergey Ershkov is responsible for the general ansatz and the solving procedure, simple algebra manipulations, calculations, results of the article in Sects. InternalRef removed–InternalRef removed, Appendix A1 and also is responsible for the search of approximated solutions. Dr. Alla Rachinskaya is responsible for approximated solving the <i>nonlinear</i> ordinary differential equation of second order (15) and (18) by means of advanced numerical methods as well as is responsible for numerical data of calculations and graphical plots of numerical solutions. Both authors agreed with results and conclusions of each other in Sects. InternalRef removed–InternalRef removed.