Astashkin, Sergey V.
Curbera, Guillermo P. https://orcid.org/0000-0002-1683-3221
Funding for this research was provided by:
Ministerio de Ciencia e Innovación (PID2021-124332NB-C21)
Scientific and Educational Mathematical Center Volga Federal District (075-02-2023-931)
Article History
Received: 28 April 2022
Accepted: 20 March 2023
First Online: 14 April 2023
Declarations
:
: The authors declare that they have no conflict of interest.