Sutrisno, S.
Do, Duc Thuan
Ha, Phi
Munadi, M.
Trenn, Stephan
Funding for this research was provided by:
Vietnam Institute for Advanced Study in Mathematics
RPI Universitas Diponegoro Research Grant (973-31/UN7.D2/PP/IX/202, 973-31/UN7.D2/PP/IX/202)
Article History
Received: 26 September 2024
Accepted: 25 May 2025
First Online: 20 June 2025
Declarations
:
: The authors declare no conflict of interest.