Funding for this research was provided by:
State Task to the Sobolev Institute of Mathematics, Siberian Branch, Russian Academy of Sciences (FWNF-2026-0026)
Article History
Received: 11 May 2025
Revised: 14 November 2025
Accepted: 18 November 2025
First Online: 3 December 2025
Declarations
:
: The authors declare no competing interests.