About author:SHEN Rong-xin(1981-), male, native of Taizhou, Jiangsu, an associate professor of Taizhou Teacher’s College, Ph.D., engages in general topology.
Supported by:
Supported by the NNSF of China(10971185); Supported by the China Postdoctoral Science Foundation Funded Project(20090461093,201003571); Supported by the Jiangsu Planned Projects for Postdoctoral Research Funds(0902064C);Supported by the Taizhou Teachers’ College Research Funds