Results 91 to 100 of about 4,149,754 (381)

Double solutions of three-point boundary-value problems for second-order differential equations

open access: yesElectronic Journal of Differential Equations, 2004
A double fixed point theorem is applied to yield the existence of at least two nonnegative solutions for the three-point boundary-value problem for a second-order differential equation, $$displaylines{ y'' + f(y)=0,quad 0 leq t leq 1,cr y(0) =0,quad y(p)
Johnny Henderson
doaj  

Iterative methods for vector equilibrium and fixed point problems in Hilbert spaces

open access: yesJournal of Inequalities and Applications, 2022
In this paper, algorithms for finding common solutions of strong vector equilibrium and fixed point problems of multivalued mappings are considered. First, a Minty vector equilibrium problem is introduced and the relationship between the Minty vector ...
San-hua Wang   +2 more
doaj   +1 more source

Spin-gap fixed points in the double-chain problem [PDF]

open access: yesPhysical Review B, 1994
Applying the bosonization procedure to weakly coupled Hubbard chains we discuss the fixed points of the renormalization group flow where all spin excitations are gapful and a singlet pairing becomes the dominant instability.
D. V. Khveshchenko   +2 more
openaire   +4 more sources

Precision‐Optimised Post‐Stroke Prognoses

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Current medicine cannot confidently predict who will recover from post‐stroke impairments. Researchers have sought to bridge this gap by treating the post‐stroke prognostic problem as a machine learning problem, reporting prediction error metrics across samples of patients whose outcomes are known.
Thomas M. H. Hope   +4 more
wiley   +1 more source

Critical Theory of Non-Fermi Liquid Fixed Point in Multipolar Kondo Problem

open access: yesPhysical Review X, 2020
When the ground state of a localized ion is a non-Kramers doublet, such localized ions may carry multipolar moments. For example, Pr^{3+} ions in a cubic environment would possess quadrupolar and octupolar, but no magnetic dipole, moments.
Adarsh S. Patri, Yong Baek Kim
doaj   +1 more source

On a class of generalized saddle-point problems arising from contact mechanics

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2022
In the present paper we consider a class of generalized saddle-point problems described by means of the following variational system: a ( u , v − u ) + b ( v − u , λ ) + j ( v ) − j ( u ) + J ( u , v ) − J ( u , u ) ≥ ( f , v − u ) X , b ( u , μ − λ ...
Andaluzia Matei
doaj   +1 more source

Active Seizures Predict Worse Instrumental Activities of Daily Living in Individuals With Normal Cognition and Dementia

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Cognitive disorders are common in older persons with seizures (PWS). Cognitive disorders are often associated with impaired Instrumental Activities of Daily Living (IADLs). However, the effects of seizures on IADLs remain unexplored.
Ifrah Zawar   +5 more
wiley   +1 more source

Existence of solutions for second-order differential equations and systems on infinite intervals

open access: yesElectronic Journal of Differential Equations, 2009
We study the existence of nontrivial solutions to the boundary-value problem $$displaylines{ -u''+cu'+lambda u = f(x,u),quad -infty <x<+infty , cr u(-infty )=u(+infty ) =0 }$$ and to the system $$displaylines{ -u''+c_1u'+lambda _1u = f(x,u ...
Toufik Moussaoui, Radu Precup
doaj  

An algorithm for variational inclusion problems including quasi-nonexpansive mappings with applications in osteoporosis prediction

open access: yesAIMS Mathematics
This paper has proposed a novel algorithm for solving fixed point problems for quasi-nonexpansive mappings and variational inclusion problems within a real Hilbert space.
Raweerote Suparatulatorn   +3 more
doaj   +1 more source

Application of Fixed-Point Theory for a Nonlinear Fractional Three-Point Boundary-Value Problem

open access: yesMathematics, 2019
Throughout this paper, via the Schauder fixed-point theorem, a generalization of Krasnoselskii’s fixed-point theorem in a cone, as well as some inequalities relevant to Green’s function, we study the existence of positive solutions of a ...
Ehsan Pourhadi   +2 more
doaj   +1 more source

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