Some properties of semi-continuous functions are investigated, and some characterizations of semi-stratifiable spaces with semi-continuous functions are given.
基金Supported by the Natural Science Foundation of China(No.10971125)the Project of Department of Education of Guangdong Province(No.2012KJCX0101)the Science Foumdation for Young Teachers of Wuyi University(No.2013zk03)
基金the National Natural Science Foundation of China (10471084, 10171043)
文摘Some properties of semi-continuous functions are investigated, and some characterizations of semi-stratifiable spaces with semi-continuous functions are given.
基金supported by NSFC(10971092)Foundation of Anhui Educational Committee for Exellent College Young Scholars(2010SQRL041)Youth Foundation of Anhui University of Technology (QZ200917)