Fisher, Brian Theorems on common fixed points. (English) Zbl 0466.54038 Fundam. Math. 113, 37-43 (1981). MSC: 54H25 PDFBibTeX XMLCite \textit{B. Fisher}, Fundam. Math. 113, 37--43 (1981; Zbl 0466.54038) Full Text: DOI EuDML
Fisher, Brian Set-valued mappings on metric spaces. (English) Zbl 0456.54009 Fundam. Math. 112, 141-145 (1981). MSC: 54C60 54E50 54B20 54H25 PDFBibTeX XMLCite \textit{B. Fisher}, Fundam. Math. 112, 141--145 (1981; Zbl 0456.54009) Full Text: DOI EuDML