Khrabustovskyi, Andrii http://orcid.org/0000-0001-6298-9684
Funding for this research was provided by:
Grantová Agentura České Republiky (22-18739S)
Univerzita Hradec Králové (Research program ‘Mathematical Physics and Differential Geometry’)
Article History
Received: 4 October 2022
Accepted: 23 January 2023
First Online: 10 February 2023