Liang, Bo
Su, Caiyue
Wang, Ying
Li, Xiumei
Zhang, Zhenyu
Funding for this research was provided by:
National Natural Science Foundation of China (11201045)
Article History
Received: 27 February 2022
Accepted: 5 April 2022
First Online: 22 April 2022
Declarations
:
: Our research is in pure mathematics direction and the research subjects do not include any humans or animals. Thus the research was carried out in accordance with the Declaration of Helsinki.
: The authors declare that they have no competing interests.