Dang, Tien Dat
Do, Duy Hieu
Phan, Thi Ha Duong
Funding for this research was provided by:
International Center for Research and Postgraduate Training in Mathematics (ICRTM04-2021.01.)
International Center for Research and Postgraduate Training in Mathematics (ICRTM04-2021.01.)
Article History
Received: 1 August 2022
Revised: 15 March 2023
Accepted: 28 March 2023
First Online: 26 April 2023
Declarations
:
: The authors declare no competing interests.