N. Shahzad
King Abdulaziz University
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Publication
Featured researches published by N. Shahzad.
mathematical sciences | 2013
Sma Aleomraninejad; Sh Rezapour; N. Shahzad
In this paper, we obtain some fixed point results on subgraphs of directed graphs. We show that the Caristi fixed point theorem and a version of Knaster-Tarski fixed point theorem are special cases of our results.2010 MSC47H10; 05C20; 54H25
The Scientific World Journal | 2013
H. Alikhani; D. Gopal; M. A. Miandaragh; Sh. Rezapour; N. Shahzad
We introduce β-generalized weak contractive multifunctions and give some results about endpoints of the multifunctions. Also, we give some results about role of a point in the existence of endpoints.
Numerical Functional Analysis and Optimization | 2018
S. Sadiq Basha; N. Shahzad
Abstract This article introduces a notion of a reverse acyclic contraction which is defined on the union of two subsets A and B of a metric space, and explores the existence of a fixed point x of the mapping in A and a fixed point y of the mapping in B such that in the setting of complete metric spaces. Further, we introduce a new class of generalized acyclic contractions that includes the class of acyclic contractions as well as the class of reverse acyclic contractions. Indeed, for the class of generalized acyclic contractions which are defined on the union of two subsets A and B of a metric space, we investigate the existence of a fixed point x of the mapping in A and a fixed point y of the mapping in B such that , and deduce some fixed point theorems for acyclic contractions and reverse acyclic contractions.
Nonlinear Analysis-theory Methods & Applications | 2011
R.H. Haghi; Sh. Rezapour; N. Shahzad
Topology and its Applications | 2013
R.H. Haghi; Sh. Rezapour; N. Shahzad
Nonlinear Analysis-theory Methods & Applications | 2009
H. K. Pathak; N. Shahzad
Nonlinear Analysis-theory Methods & Applications | 2009
H. K. Pathak; N. Shahzad
Revista De La Real Academia De Ciencias Exactas Fisicas Y Naturales Serie A-matematicas | 2014
P. Amiri; Sh. Rezapour; N. Shahzad
Bulletin of The Belgian Mathematical Society-simon Stevin | 2013
H. K. Pathak; N. Shahzad
Topological Methods in Nonlinear Analysis | 2013
H. K. Pathak; N. Shahzad
