Xin, Yumei; Wang, Baoling Some kinds of mappings of topological spaces. (Chinese. English summary) Zbl 0970.54508 J. Harbin Inst. Technol. 28, No. 5, 12-15 (1996). MSC: 54C08 PDFBibTeX XMLCite \textit{Y. Xin} and \textit{B. Wang}, J. Harbin Inst. Technol. 28, No. 5, 12--15 (1996; Zbl 0970.54508)
Xin, Yumei; Wang, Baoling; Zheng, Fengru Topological properties of the space \([0,\omega_1)\). (Chinese. English summary) Zbl 0970.54506 J. Harbin Inst. Technol. 27, No. 2, 26-28 (1995). MSC: 54A99 PDFBibTeX XMLCite \textit{Y. Xin} et al., J. Harbin Inst. Technol. 27, No. 2, 26--28 (1995; Zbl 0970.54506)
Xin, Yumei; Wang, Baoling; Zheng, Fengru Spaces of multifunctions and their convergence properties. (Chinese. English summary) Zbl 0970.54510 J. Harbin Inst. Technol. 27, No. 1, 24-26 (1995). MSC: 54C60 PDFBibTeX XMLCite \textit{Y. Xin} et al., J. Harbin Inst. Technol. 27, No. 1, 24--26 (1995; Zbl 0970.54510)
Xin, Yumei; Wang, Baoling; Deng, Tingquan Subcontinuity, \(P\)-continuity and \(U\)-continuity of set-valued mappings. (Chinese. English summary) Zbl 0970.54507 J. Harbin Inst. Technol. 26, No. 5, 8-11 (1994). MSC: 54C08 54C60 PDFBibTeX XMLCite \textit{Y. Xin} et al., J. Harbin Inst. Technol. 26, No. 5, 8--11 (1994; Zbl 0970.54507)
Xin, Yumei Bicontiguous spaces and their properties. (Chinese. English summary) Zbl 0970.54517 J. Harbin Inst. Technol. 24, No. 1, 1-4 (1992). MSC: 54E55 PDFBibTeX XMLCite \textit{Y. Xin}, J. Harbin Inst. Technol. 24, No. 1, 1--4 (1992; Zbl 0970.54517)
Xin, Yu Mei Some properties of the bicontiguous spaces and pairwise contiguous spaces. (English) Zbl 0970.54516 J. Harbin Inst. Technol. 23, No. 4, 97-99 (1991). MSC: 54E55 PDFBibTeX XMLCite \textit{Y. M. Xin}, J. Harbin Inst. Technol. 23, No. 4, 97--99 (1991; Zbl 0970.54516)