نتایج جستجو برای: generalized contraction mapping

تعداد نتایج: 417061  

Journal: :bulletin of the iranian mathematical society 2012
stojan radenovi'c zoran kadelburg davorka jandrli'c andrija jandrli'c

in this paper direct proofs of some common fixed point results for two and three mappings under weak contractive conditions are given. some of these results are improved by using different arguments of control functions. examples are presented showing that some generalizations cannot be obtained and also that our results are distinct from the existing ones.

Huang and Zhang cite{Huang} have introduced the concept of cone metric space where the set of real numbers is replaced by an ordered Banach space. Shojaei cite{shojaei} has obtained points of coincidence and common fixed points for s-Contraction mappings which satisfy generalized contractive type conditions in a complete cone metric space.In this paper, the notion of complete cone metric ...

2011
Shams-ur-rahman K. Jha

The probabilistic metric space as one of the important generalization of metric space was introduced by K. Menger in 1942. In this paper, we briefly discuss the historical developments of contraction mappings in probabilistic metric space with some fixed point results.

Journal: :iranian journal of fuzzy systems 2014
h vosoughi s. j hosseini ghoncheh

in a fuzzy metric space (x;m; *), where * is a continuous t-norm,a locally fuzzy contraction mapping is de ned. it is proved that any locally fuzzy contraction mapping is a global fuzzy contractive. also, if f satis es the locally fuzzy contractivity condition then it satis es the global fuzzy contrac-tivity condition.

Journal: :bulletin of the iranian mathematical society 2014
ö. acar g. durmaz g minak

in the present paper‎, ‎we introduce the concept of generalized multivalued $f$ -‎contraction mappings and give a fixed point result‎, ‎which is a proper‎ ‎generalization of some multivalued fixed point theorems including nadler's‎.

Journal: :نظریه تقریب و کاربرد های آن 0
جواد مجردی افرا آر آی

in this paper, we prove some common fi xed point results for two self mappingsf and g on s-metric space such that f is a g.w.c.m with respect to g.

Journal: :journal of linear and topological algebra (jlta) 0
r jalal shahkoohi department of mathematics and statistics, aliabad katoul branch, islamic azad university, aliabad katoul, iran. s.a kazemipour department of mathematics and statistics, aliabad katoul branch, islamic azad university, aliabad katoul, iran. a rajabi eyvali department of mathematics and statistics, aliabad katoul branch, islamic azad university, aliabad katoul, iran.

in this paper, tripled coincidence points of mappings satisfying  -contractive conditions in the framework of partially ordered gb-metric spaces are obtained. our results extend the results of aydi et al. [h. aydi, e. karapnar and w. shatanawi, tripled xed point results in generalized metric space, j. applied math., volume 2012, article id 314279, 10 pages]. moreover, some examples of the mai...

H VOSOUGHI, S. J Hosseini Ghoncheh

In a fuzzy metric space (X;M; *), where * is a continuous t-norm,a locally fuzzy contraction mapping is de ned. It is proved that any locally fuzzy contraction mapping is a global fuzzy contractive. Also, if f satis es the locally fuzzy contractivity condition then it satis es the global fuzzy contrac-tivity condition.    

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