Harjani, J.; López, B.; Sadarangani, K. Fixed point theorems for mixed monotone operators and applications to integral equations. (English) Zbl 1218.54040 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 5, 1749-1760 (2011). Reviewer: Hengyou Lan (Zigong) MSC: 54H25 54E50 54F05 PDFBibTeX XMLCite \textit{J. Harjani} et al., Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 5, 1749--1760 (2011; Zbl 1218.54040) Full Text: DOI
Harjani, J.; Sadarangani, K. Generalized contractions in partially ordered metric spaces and applications to ordinary differential equations. (English) Zbl 1220.54025 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 72, No. 3-4, 1188-1197 (2010). Reviewer: Adrian Petruşel (Cluj-Napoca) MSC: 54H25 54F05 34A12 34B15 PDFBibTeX XMLCite \textit{J. Harjani} and \textit{K. Sadarangani}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 72, No. 3--4, 1188--1197 (2010; Zbl 1220.54025) Full Text: DOI
Harjani, J.; Sadarangani, K. Fixed point theorems for weakly contractive mappings in partially ordered sets. (English) Zbl 1221.54058 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 71, No. 7-8, 3403-3410 (2009). MSC: 54H25 54E50 54F05 PDFBibTeX XMLCite \textit{J. Harjani} and \textit{K. Sadarangani}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 71, No. 7--8, 3403--3410 (2009; Zbl 1221.54058) Full Text: DOI