scholarly journals A Fixed Point Theorem for Multivalued Mappings withδ-Distance

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Özlem Acar ◽  
Ishak Altun

We mainly study fixed point theorem for multivalued mappings withδ-distance using Wardowski’s technique on complete metric space. Let(X,d)be a metric space and letB(X)be a family of all nonempty bounded subsets ofX. Defineδ:B(X)×B(X)→Rbyδ(A,B)=supd(a,b):a∈A,b∈B.Consideringδ-distance, it is proved that if(X,d)is a complete metric space andT:X→B(X)is a multivalued certain contraction, thenThas a fixed point.

2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Ming-liang Song ◽  
Zhong-qian Wang

We prove a common fixed point theorem for a pair of generalized Bose-Mukherjee-type fuzzy mappings in a complete metric space. An example is also provided to support the main result presented herein.


2018 ◽  
Vol 34 (1) ◽  
pp. 93-102
Author(s):  
NICOLAE-ADRIAN SECELEAN ◽  

The purpose of this paper is to combine and extend some recent fixed point results of Suzuki, T., [A new type of fixed point theorem in metric spaces, Nonlinear Anal., 71 (2009), 5313–5317] and Secelean, N. A. & Wardowski, D., [ψF-contractions: not necessarily nonexpansive Picard operators, Results Math., 70 (2016), 415–431]. The continuity and the completeness conditions are replaced by orbitally continuity and orbitally completeness respectively. It is given an illustrative example of a Picard operator on a non complete metric space which is neither nonexpansive nor expansive and has a unique continuity point.


2006 ◽  
Vol 13 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Mohamed Akkouchi

Abstract In this paper, we prove a common fixed point theorem for two pairs of weakly compatible self-mappings of a complete metric space without requiring continuity. Our result generalizes a theorem obtained by V. Popa and H. K. Pathak in 1998 and a result obtained by B. Fisher and S. Sessa in 1986.


Mathematics ◽  
2019 ◽  
Vol 7 (8) ◽  
pp. 720
Author(s):  
Obaid Alqahtani ◽  
Venigalla Madhulatha Himabindu ◽  
Erdal Karapınar

In this paper, we aim to obtain fixed-point results by merging the interesting fixed-point theorem of Pata and Suzuki in the framework of complete metric space and to extend these results by involving admissible mapping. After introducing two new contractions, we investigate the existence of a (common) fixed point in these new settings. In addition, we shall consider an integral equation as an application of obtained results.


2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Penumurthy Parvateesam Murthy ◽  
K. N. V. V. Vara Prasad

A fixed point theorem is presented for single-valued map with using generalizedφ-weak contractive condition involving various combinations ofdx,yon a complete metric space. Our result is an extension as well as a generalization of Alber and Guerre-Delabriere (1997) in particular. It also generalizes the results of Rhoades (2001), Choudhury and Dutta, (2000), and Dutta and Choudhury, (2008).


Author(s):  
B. E. Rhoades ◽  
S. Sessa ◽  
M. S. Khan ◽  
M. D. Khan

The first result establishes a fixed point theorem for three maps of a complete metric space. The contractive definition is a generalization of that of Hardy and Rogers, and the commuting condition of Jungck is replaced by the concept of weakly commuting. The other results are extensions of some theorems of Kannan.


1991 ◽  
Vol 14 (3) ◽  
pp. 417-420 ◽  
Author(s):  
Takeshi Taniguchi

In this paper a common fixed point theorem for two sequences of self-mappings from a complete metric spaceMtoMis proved. Our theorem is a generalization of Hadzic's fixed point theorem[1].


Author(s):  
B. E. Rhoades

LetXbe a complete, metrically convex metric space,Ka closed convex subset ofX,CB(X)the set of closed and bounded subsets ofX. LetF:K→CB(X)satisfying definition (1) below, with the added condition thatFx⫅Kfor eachx∈∂K. ThenFhas a fixed point inK. This result is an extension to multivalued mappings of a result of Ćirić [1].


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