Results 91 to 100 of about 8,426 (194)

Ergodic theorems for nonlinear contraction semigroups in a Hilbert space. [Kernels, ergodic theorems, nonlinear contraction]

, 1979
Two ergodic theorems are presented for means of nonlinear contraction semigroups in a Hilbert space. These means are generated by a class of averaging kernels which includes the usual Abel and Cesaro-(C,..cap alpha..) kernels. 7 references.
H. G. Kaper, G. K. Leaf
openaire   +2 more sources

Solution of Volterra integral inclusion in b-metric spaces via new fixed point theorem

, 2017
An existence theorem for Volterra-type integral inclusion is establish in b-metric spaces. We first introduce two new F-contractions of Hardy–Rogers type and then establish fixed point theorems for these contractions in the setting of b ...
Ali, Muhammad Usman Usman, Postolache, Mihai, Kamran, Tayyab   +2 more
core   +1 more source

Triple-Composed Metric Spaces and Related Fixed Point Results With Application

Journal of Function Spaces
This paper introduces the concept of triple-composed metric space as a new generalization of double-composed metric space and rectangular b-metric space.
Chol Jin Kil, Kwang Ho, Won-Chol Yang, Un Ok Kim   +3 more
doaj   +1 more source

On Polynomial φ-Contractions with Applications to Fractional Logistic Growth Equations

Fractal and Fractional
In this article, we introduce and study a novel class of polynomial φ-contractions, which simultaneously generalizes classical polynomial contractions and φ-contractions within a unified framework.
Abdelkader Moumen, Hayel N. Saleh, Hussien Albala, Khaled Aldwoah, Hicham Saber, E. I. Hassan, Taher S. Hassan   +6 more
doaj   +1 more source

The Solution of Nonlinear Matrix Equations Using Suzuki Multivalued Fixed Point Theorems in Rectangular M-Metric Spaces

International Journal of Mathematics and Mathematical Sciences
This paper establishes new fixed-point (FP) theorems for Suzuki–Rational ψ,ϕ-type multivalued contractions in complete rectangular M-metric spaces (RM-MSs).
Mustafa Mudhesh, Muhammad Arshad, Aftab Hussain, Hamed Alsulami   +3 more
doaj   +1 more source

Fixed point results for single and multivalued three-points contractions

In this paper, we are concerned with the study of the existence of fixed points for single and multivalued three-points contractions. Namely, we first introduce a new class of singlevalued mappings defined on a metric space equipped with three metrics. A
Jleli, Mohamed, Bessem Samet, Mohamed Jleli, Evgeniy Petrov, Samet, Bessem, Petrov, Evgeniy   +5 more
core   +1 more source

Observations on relation-theoretic coincidence theorems under Boyd–Wong type nonlinear contractions

, 2019
In this article, we carry out some observations on existing metrical coincidence theorems of Karapinar et al. (Fixed Point Theory Appl. 2014:92, 2014) and Erhan et al. (J. Inequal. Appl.
Mohammad Arif, Mohammad Imdad, Aftab Alam   +2 more
core   +1 more source

Best proximity points for proximal contractions [PDF]

, 2014
In this paper we improve and extend some best proximity point results concerning the so- called proximal contractions. Specifically, compactness assumptions under the sets A and B are removed to consider completeness conditions ...
Fernández León, Aurora
core  

On the convergence of Ishikawa iterates defined by nonlinear quasi-contractions

, 2009
In [8] Lj. B. Ćirić proved general result on the convergence of Ishikawa iterates of nonlinear quasi - contractions defined on Takahashi convex metric space.
Rajović, Miloje, Kilibarda, Veda, Aranđelović, Ivan   +2 more
core   +1 more source

Extension of nonlinear contractions [PDF]

Bulletin of the American Mathematical Society, 1966
openaire   +3 more sources