Lazaiz, Samih; Chaira, Karim; Aamri, Mohamed; Marhrani, El Miloudi Related fixed point theorems of Caristi type for two set valued mappings. (English) Zbl 1489.54170 Bull. Math. Anal. Appl. 9, No. 1, 123-133 (2017). MSC: 54H25 47H10 54E40 54E50 54C60 PDFBibTeX XMLCite \textit{S. Lazaiz} et al., Bull. Math. Anal. Appl. 9, No. 1, 123--133 (2017; Zbl 1489.54170) Full Text: Link
Saffaj, Hamza; Chaira, Karim; Aamri, Mohamed; Marhrani, El-Miloudi A generalization of contraction principle in quasi-metric spaces. (English) Zbl 07041492 Bull. Math. Anal. Appl. 9, No. 1, 92-108 (2017). MSC: 47H10 PDFBibTeX XMLCite \textit{H. Saffaj} et al., Bull. Math. Anal. Appl. 9, No. 1, 92--108 (2017; Zbl 07041492) Full Text: Link
Chaira, Karim; Marhrani, El Miloudi; Aamri, Mohamed Some related fixed point theorems on metric spaces. (English) Zbl 1489.54088 Bull. Math. Anal. Appl. 7, No. 2, 46-55 (2015). MSC: 54H25 47H10 54E40 PDFBibTeX XMLCite \textit{K. Chaira} et al., Bull. Math. Anal. Appl. 7, No. 2, 46--55 (2015; Zbl 1489.54088) Full Text: Link