Results 41 to 50 of about 591,069 (266)
Some Common Fixed Point Theorems in Generalized Metric Spaces
Journal of Mathematics, 2013 First we prove common fixed point theorems for weakly compatible maps which generalize the results of Chen (2012). Secondly, we prove common fixed point theorems using property E.A. along with weakly compatible maps.
Manoj Kumar, Pankaj Kumar, Sanjay Kumar
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Fixed point theorems of JS-quasi-contractions
, 2016 In this paper, we introduce the concept of JS-quasi-contraction and prove some fixed point results for JS-quasi-contractions in complete metric spaces under the assumption that the involving function is nondecreasing and continuous.
Zhilong Li, Shujun Jiang
semanticscholar +1 more source
Demonstratio Mathematica, 1996 Let \((X,d)\) be a bounded metric space and \(T:X\to \text{CB} (X)\) a set-valued mapping. Let \(O(x)\) be the orbit of \(x\) by the mapping \(T\) and let \(\delta(A,B)\) be the diameter of the pair \(A,B\subset X\). The author gives some strict fixed point theorems for some set-valued mappings which satisfy the following condition \[ \delta (Tx,Ty ...
openaire +2 more sources
Partial metric spaces with negative distances and fixed point theorems [PDF]
, 2015 In this paper we consider partial metric spaces in the sense of O'Neill. We introduce the notions of strong partial metric spaces and Cauchy functions.
Assaf, Samer, Pal, Koushik
core
Some fixed point theorems concerning (ψ,ϕ )-type contraction in complete metric spaces
, 2016 The purpose of this paper is to introduce the notions of (ψ, φ)-type contractions and (ψ, φ)-type Suzuki contractions and to establish some new fixed point theorems for such kind of mappings in the setting of complete metric spaces. The results presented
Xindong Liu +3 more
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The multiplicativity of fixed point invariants
, 2013 We prove two general factorization theorems for fixed-point invariants of fibrations: one for the Lefschetz number and one for the Reidemeister trace. These theorems imply the familiar multiplicativity results for the Lefschetz and Nielsen numbers of a ...
Citterio +10 more
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Cyclic compatible contraction and related fixed point theorems
, 2016 In this work, we introduce the concept of a cyclic compatible contraction and prove related fixed point theorems in the generating space of a b-quasi-metric family.
P. Kumari, D. Panthi
semanticscholar +1 more source
Notes on multidimensional fixed-point theorems
Demonstratio Mathematica, 2017 In this paper we prove the existence and uniqueness of coincident (fixed) points for nonlinear mappings of any number of arguments under a (ψ, θ, φ)-weak contraction condition without O-compatibility.
Akhadkulov Habibulla +4 more
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Some Krasnosel’skii-type fixed point theorems for Meir–Keeler-type mappings
Nonlinear Analysis, 2020 In this paper, inspired by the idea of Meir–Keeler contractive mappings, we introduce Meir–Keeler expansive mappings, say MKE, in order to obtain Krasnosel’skii-type fixed point theorems in Banach spaces. The idea of the paper is to combine the notion of
Ehsan Pourhadi +2 more
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Generalized Caristi's Fixed Point Theorems
Fixed Point Theory and Applications, 2009 We present generalized versions of Caristi's fixed point theorem for multivalued maps. Our results either improve or generalize the corresponding generalized Caristi's fixed point theorems due to Bae (2003), Suzuki (2005), Khamsi (2008), and others.
Latif Abdul
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