Butt, Asma Rashid; Beg, Ismat; Iftikhar, Aqsa Fixed points on ordered metric spaces with applications in homotopy theory. (English) Zbl 1489.54087 J. Fixed Point Theory Appl. 20, No. 1, Paper No. 21, 15 p. (2018). MSC: 54H25 54E40 54F05 54C60 PDFBibTeX XMLCite \textit{A. R. Butt} et al., J. Fixed Point Theory Appl. 20, No. 1, Paper No. 21, 15 p. (2018; Zbl 1489.54087) Full Text: DOI
Beg, Ismat; Butt, Asma Rashid Common fixed point for generalized set valued contractions satisfying an implicit relation in partially ordered metric spaces. (English) Zbl 1195.54068 Math. Commun. 15, No. 1, 65-76 (2010). MSC: 54H25 47H10 47H04 47H07 PDFBibTeX XMLCite \textit{I. Beg} and \textit{A. R. Butt}, Math. Commun. 15, No. 1, 65--76 (2010; Zbl 1195.54068) Full Text: Link
Beg, I.; Butt, A. R. Fixed points for weakly compatible mappings satisfying an implicit relation in partially ordered metric spaces. (English) Zbl 1199.54207 Carpathian J. Math. 25, No. 1, 01-12 (2009). MSC: 54H25 54C60 PDFBibTeX XMLCite \textit{I. Beg} and \textit{A. R. Butt}, Carpathian J. Math. 25, No. 1, 01--12 (2009; Zbl 1199.54207)