Search results for "fixed point"

showing 6 items of 6 documents

Common fixed points for discontinuous mappings in fuzzy metric spaces

2008

In this paper we prove some common fixed point theorems for fuzzy contraction respect to a mapping, which satisfies a condition of weak compatibility. We deduce also fixed point results for fuzzy contractive mappings in the sense of Gregori and Sapena.

Discrete mathematicsFuzzy metric spaceGeneral MathematicsFixed pointFixed-point propertyFuzzy logicFuzzy metric spaceLeast fixed pointPoints of coincidenceCommon fixed pointSettore MAT/05 - Analisi MatematicaFixed-point iterationCommon fixed pointDiscontinuous mappingCoincidence pointMathematicsRendiconti del Circolo Matematico di Palermo
researchProduct

Weakly \varphi-pairs and common fixed points in cone metric spaces

2009

In this paper we introduce a weak contractive condition, called weakly \varphi-pair, for two mappings in the framework of cone metric spaces and we prove a theorem which ensures existence and uniqueness of common fixed points for such mappings. Also we obtain a result on points of coincidence. These results extend and generalize well-known comparable results in the literature.

Pure mathematicsGeneral MathematicsInjective metric spaceMathematical analysisCoincidence pointsFixed pointConvex metric spaceIntrinsic metricMetric spaceCommon fixed pointCone (topology)Settore MAT/05 - Analisi MatematicaWeakly \varphi-pairCone metric spaceUniquenessCoincidence pointMathematics
researchProduct

Some Common Fixed Point Results in Cone Metric Spaces

2009

We prove a result on points of coincidence and common fixed points for three self-mappings satisfying generalized contractive type conditions in cone metric spaces. We deduce some results on common fixed points for two self-mappings satisfying contractive type conditions in cone metric spaces. These results generalize some well-known recent results.

Pure mathematicsT57-57.97QA299.6-433Applied mathematics. Quantitative methodsInjective metric spaceApplied MathematicsMathematical analysisEquivalence of metricsFixed pointConvex metric spaceIntrinsic metricMetric spaceSettore MAT/05 - Analisi MatematicaMetric (mathematics)Metric mapGeometry and TopologyPoints of coincidence common fixed points contractive mappingsAnalysisMathematicsFixed Point Theory and Applications
researchProduct

Common fixed points in ordered Banach spaces

2008

In this paper we introduce the notion of g-weak isotone mappings in an ordered Banach space and we extend some common fixed point theorems of Dhage, O’Regan and Agarwal

ordered Banach spaces weak contractions common fixed pointsSettore MAT/05 - Analisi Matematica
researchProduct

Some fixed point theorems for occasionally weakly compatible mappings in probabilistic semi-metric spaces

2009

We prove some common fixed point theorems in probabilistic semi-metric spaces for occasionally weakly compatible mappings satisfying a generalized contractive condition. We give also results of common fixed point for mappings satisfying a condition of integral type.

semi-metric spacesSettore MAT/05 - Analisi MatematicaOccasionally weakly compatible mappingcommon fixed point theorem
researchProduct

Three existence theorems for weak contractions of Matkowski type

2010

We prove three generalizations of Matkowski’s fixed point theorems for weakly contractions.

fixed point best proximity point cyclic weak contraction property UC.Settore MAT/05 - Analisi Matematica
researchProduct