Contact infomation:

1322B, School of Mathematics, New Main Building , Beijing Normal University,Haidian District 100875, Beijing, China

B129, Lijiao Building, Zhuhai campus of Beijing Normal University, Xiangzhou District, Zhuhai, Guangdong, China

Email: chuang.zheng@bnu.edu.cn or chuang.zheng@gmail.com

Last updated: 23 of January, 2024.