Results 21 to 30 of about 8,426 (194)

C-class functions on fixed and common fixed point results for cyclic mappings of Omega-distance

open access: yesNonlinear Analysis, 2017
In this paper, we derive and formulate many fixed point results of cyclic form under contractive conditions based on implicit relations in the setting of Ω-distance. Our results improve and generalize many existing results in the literature.
Arslan Hojat Ansari, Wasfi Shatanawi
doaj   +1 more source

Fixed point theorems for Geraghty-type mappings applied to solving nonlinear Volterra-Fredholm integral equations in modular G-metric spaces [PDF]

open access: yesArab Journal of Mathematical Sciences, 2021
Purpose – The authors prove the existence and uniqueness of fixed point of mappings satisfying Geraghty-type contractions in the setting of preordered modular G-metric spaces.
Godwin Amechi Okeke, Daniel Francis
doaj   +1 more source

Existence of a solution for a nonlinear integral equation by nonlinear contractions involving simulation function in partially ordered metric space

open access: yes, 2023
In a recent paper, Khojasteh et al. presented a new collection of simulation functions, said Z-contraction. This form of contraction generalizes the Banach contraction and makes different types of nonlinear contractions.
Shams, Maryam   +4 more
core   +1 more source

On fixed point results for alpha-implicit contractions in quasi-metric spaces and consequences

open access: yes, 2016
In this paper, we prove some fixed point results involving α-implicit contractions in quasi-metric spaces. Moreover, we provide some known results on G-metric spaces.
Aydi, Hassen   +2 more
core   +2 more sources

Note on Nonlinear Contraction Semigroups [PDF]

open access: yesProceedings of the American Mathematical Society, 1969
1. Let X be a Banach space and let { F(£); 0^£< » } be a family of nonlinear operators from X into itself satisfying the following conditions: (i) T(0)=I (the identity) and T{£+7]) = T{£)T{v) for ?, t?^0. (ii) ||r(£)x-7X£);y||=g||x-3,|| for x, y EX. (iii) limj_o+ ||F(£)x — x|| =0 for xEX.
openaire   +2 more sources

On a generalized fractional boundary value problem based on the thermostat model and its numerical solutions via Bernstein polynomials

open access: yesAdvances in Difference Equations, 2021
In this paper, we introduce a new structure of the generalized multi-point thermostat control model motivated by its standard model. By presenting integral solution of this boundary problem, the existence property along with the uniqueness property are ...
Sina Etemad   +5 more
doaj   +1 more source

Factorizations and partial contraction of nonlinear systems [PDF]

open access: yesProceedings of the 2010 American Control Conference, 2010
In this paper, we introduce new results in the analysis of convergence of nonlinear systems. The point of view we take is the one of contraction theory and we focus in particular on convergence to smooth manifolds. A main characteristic of contraction theory is that it does not require nor use any knowledge about the asymptotic trajectory of the system.
Slotine, Jean-Jacques E.   +1 more
openaire   +1 more source

Nonlinear contractions involving simulation functions in a metric space with a partial order [PDF]

open access: yes, 2015
Very recently, Khojasteh, Shukla and Radenovic [F. Khojasteh, S. Shukla, S. Radenovic, Filomat, 29 (2015), 1189-1194] introduced the notion of Z-contraction, that is, a nonlinear contraction involving a new class of mappings namely simulation functions ...
Hajer Argoubi   +5 more
core   +1 more source

On weakly nonlinear contractions [PDF]

open access: yesKodai Mathematical Journal, 1983
The author generalizes some known fixed point theorems to cone-valued metric spaces. The main theorem reads as follows: Theorem. Let \((X,d)\) be a complete, convex, \(K\)-metric space (where \(K\) denotes a strongly normed cone in a reflexive Banach space \(E\)) and \(S\) a non-empty closed subset of \(X\) such that for each \(x\in S\), there exists ...
openaire   +3 more sources

Fixed points of dynamic processes of set-valued F-contractions and application to functional equations [PDF]

open access: yes, 2015
The article is a continuation of the investigations concerning F-contractions which have been recently introduced in [Wardowski in Fixed Point Theory Appl. 2012:94,2012]. The authors extend the concept of F-contractive mappings to the case of nonlinear F-
Klim, Dorota   +3 more
core   +1 more source

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