Results 101 to 110 of about 7,223,590 (284)

Positive solutions of fractional integral equations by the technique of measure of noncompactness

open access: yesJournal of Inequalities and Applications, 2017
In the present study, we work on the problem of the existence of positive solutions of fractional integral equations by means of measures of noncompactness in association with Darbo’s fixed point theorem. To achieve the goal, we first establish new fixed
Hemant Kumar Nashine   +3 more
doaj   +1 more source

A Generalization of Fixed-Point Theorems for Mappings with a Contractive Iterate

open access: yesMathematics
In this paper, a generalization of fixed-point mappings with an iterate at a point in complete metric spaces is shown, using the notions of T-closed sets and i-P-regularity/d-P-regularity, proving conditions for the existence and uniqueness of the fixed ...
Valentin Georgiev, Boyan Zlatanov
doaj   +1 more source

Coupled fixed point theorems in complete metric spaces endowed with a directed graph and application

open access: yesOpen Mathematics, 2017
The purpose of this paper is to present some existence results for coupled fixed point of a (φ,ψ) —contractive condition for mixed monotone operators in metric spaces endowed with a directed graph.
Kir Mehmet   +2 more
doaj   +1 more source

Remarks on some coupled coincidence point results in partially ordered metric spaces

open access: yesArab Journal of Mathematical Sciences, 2014
In this paper we have used a method of reducing coupled coincidence and coupled fixed point results in partially ordered metric spaces to the respective results for mappings with one variable, even obtaining (in some cases) more general theorems.
Stojan Radenović
doaj   +1 more source

Coupled fixed points and α-dense curves [PDF]

open access: yesCarpathian Journal of Mathematics, 2016
We present a new iterative method, based on the so called α-dense curves, to approximate coupled fixed points of nonexpansive mappings. Compactness condition on the mapping or its domain of definition is necessary. As application, we construct a sequence which converges to a solution of certain system of integral equations of Volterra type.
openaire   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

Coupled Models $WD_{3}$. Their Fixed Points

open access: yes, 2001
7 pages, 6 figures, Proceedings of the conference "Statistical Field Theory", Como 2001.
Dotsenko, Vladimir S.   +2 more
openaire   +2 more sources

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

(Alpha-Psi)- Construction with Q- Function for Coupled Fixed Point

open access: yes, 2013
:- The purpose of this article  is to prove coupled fixed point theorem for non linear contractive mappings in partially ordered complete quasi - metric spaces using the concept of  monotone mapping with a
Patel, Reena M.   +3 more
core  

The microbiome in human skin aging

open access: yesFEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana   +3 more
wiley   +1 more source

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