Results 61 to 70 of about 1,189,444 (300)

In vitro generation of regulatory T cells: A challenging tool for studying immune aging in humans

open access: yesFEBS Open Bio, EarlyView.
In vitro induction of human regulatory T cells using standard protocols generates suppressive, Foxp3‐expressing CD4+ T cells independently of TGF‐β supplementation and donor age. Regulatory T (Treg) cells play a key role in immune tolerance and homeostasis.
Lynn Muller   +3 more
wiley   +1 more source

Mappings contracting transverse axis of hyperbola

open access: yesApplied General Topology
In this paper a new contractive type mapping known as mapping contracting transverse axis of hyperbola is introduced. This mapping can reduce the length of transverse axis of a hyperbola.
Kushal Roy
doaj   +1 more source

On Extended Branciari b-Distance Spaces and Applications to Fractional Differential Equations

open access: yesJournal of Function Spaces, 2021
In this work, we define new α−λ-rational contractive conditions and establish fixed-points results based on aforesaid contractive conditions for a mapping in extended Branciari b-distance spaces. We furnish two examples to justify the work.
Reena Jain   +3 more
doaj   +1 more source

On interpolative Hardy-Rogers type cyclic contractions

open access: yesApplied General Topology
Recently, Karapınar introduced a new Hardy-Rogers type contractive mapping using the concept of interpolation and proved a fixed point theorem in complete metric space. This new type of mapping, called "interpolative Hardy-Rogers type contractive mapping"
Mohamed Edraoui   +2 more
doaj   +1 more source

Wardowski Type Contractions and the Fixed-Circle Problem on S-Metric Spaces

open access: yesJournal of Mathematics, 2018
In this paper, we present new fixed-circle theorems for self-mappings on an S-metric space using some Wardowski type contractions, ψ-contractive, and weakly ψ-contractive self-mappings.
Nabil Mlaiki   +4 more
doaj   +1 more source

Hydrogel platforms for 3D cardiac tissue engineering and fibrotic disease modelling

open access: yesFEBS Open Bio, EarlyView.
Hydrogel‐based cardiac tissue models are advancing our understanding of heart health and disease. By incorporating electrical conductivity, aligned structures, and tunable mechanical properties, these platforms better replicate the complex environment of native heart tissue.
Harrison Porritt   +2 more
wiley   +1 more source

On Fixed Points of α-ψ-Contractive Multivalued Mappings in Cone Metric Spaces

open access: yesAbstract and Applied Analysis, 2013
We define the notion of α*-ψ-contractive mappings for cone metric space and obtain fixed points of multivalued mappings in connection with Hausdorff distance function for closed bounded subsets of cone metric spaces.
Marwan Amin Kutbi   +2 more
doaj   +1 more source

An Approach of Lebesgue Integral in Fuzzy Cone Metric Spaces via Unique Coupled Fixed Point Theorems

open access: yesJournal of Function Spaces, 2021
In the theory of fuzzy fixed point, many authors have been proved different contractive type fixed point results with different types of applications. In this paper, we establish some new fuzzy cone contractive type unique coupled fixed point theorems ...
Muhammad Talha Waheed   +4 more
doaj   +1 more source

A note on the extension of contractive mappings [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
In this note a question posed by J. D. Bryant and L. F. Guseman, Jr. is answered. It is shown that for dense subsets of finite dimensional Banach spaces, the iterative test being conclusive and the contractive extension property are not equivalent. If
openaire   +1 more source

Convergence and well-posedness properties of uniformly locally contractive mappings

open access: yes, 2023
In a 1961 paper by E. Rakotch it was shown that a uniformly locally contractive mapping has a fixed point. In the present paper we show that for such a mapping, the fixed point problem is well posed and that inexact iterates of such a mapping converge
Reich, Simeon, Zaslavski, Alexander J.
core  

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