Results 31 to 40 of about 5,785 (299)

A singular nonlinear boundary value problem with Neumann conditions [PDF]

open access: yesOpuscula Mathematica, 2005
We study the existence of solutions for the equations \(x^{\prime\prime}\pm g(t,x)=h(t)\), \(t\in (0,1)\) with Neumann boundary conditions, where \(g:[0,1] \times (0,+\infty) \to [0,+\infty)\) and \(h:[0,1] \to \mathbb{R}\) are continuous and \(g(t,\cdot)
Julian Janus
doaj  

Two constant sign solutions for a nonhomogeneous Neumann boundary value problem

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2015
We consider a nonlinear Neumann problem with a nonhomogeneous elliptic differential operator. With some natural conditions for its structure and some general assumptions on the growth of the reaction term we prove that the problem has two nontrivial ...
Liliana Klimczak
doaj   +1 more source

Neumann boundary value problems with discontinuities

open access: yesApplied Mathematics Letters, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Neumann problem on the semi-line for the Burgers equation

open access: yes, 2011
In this article, the Neumann problem on the semi-line for the Burgers equation is considered. The problem is reduced to a nonlinear integral equation in one independent variable, whose unique solution is proven to exist for small time.
Sommacal, Matteo, de Lillo, Silvana
core   +1 more source

Numerical solution and spectrum of boundary-domain integral equation for the Neumann BVP with variable coefficient

open access: yes, 2012
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 Taylor & Francis.In this paper, a numerical implementation of a direct united boundary-domain integral equation (BDIE ...
Mikhailov, SE, Mohamed, NA
core   +1 more source

Stochastic evolution as a quasiclassical limit of a boundary value problem for Schrödinger equations [PDF]

open access: yes, 2002
We develop systematically a new unifying approach to the analysis of linear stochastic, quantum stochastic and even deterministic equations in Banach spaces.
Kolokoltsov, V. N. (Vasiliĭ Nikitich)   +3 more
core   +1 more source

Existence and nonexistence results for second-order Neumann boundary value problem [PDF]

open access: yesSurveys in Mathematics and its Applications, 2009
In this paper some existence and nonexistence results for positive solutions are obtained for second-order boundary value problem -u"+Mu=f(t,u),    t∈(0,1) with Neumann boundary conditions u'(0)=u'(1)=0, where M>0,  f∈C([0,1]×R+, R+).
Fang Zhang, Yujun Cui, Feng Wang
doaj  

Existence and Uniqueness Results for Perturbed Neumann Boundary Value Problems [PDF]

open access: yesBoundary Value Problems, 2010
The authors study existence and uniqueness of positive solution for the following nonlinear perturbed BVP: \[ \pm u''(t)+m^2u(t)=f(t,u(t))+g(t),\quad 00,\;\exists\varphi(\gamma)\in(\gamma,1]: f(t,\gamma x)\geq \varphi(\gamma)f(t,x),\;\forall t\in[0,1]. \] Using a fixed point theorem for \(\alpha\)-concave operators in [\textit{C.-B. Zhai, C. Yang} and \
Jieming Zhang, Chengbo Zhai
openaire   +4 more sources

Backbone‐Controlled Ion‐Side Chain Accessibility in Conjugated Polymers for Organic Electrochemical Synaptic Transistors

open access: yesAdvanced Functional Materials, EarlyView.
Backbone modulation in glycolated conjugated polymers governs ion accessibility to side chains, strengthes anion adsorption, and suppresses back‐diffusion. As the number of thiophene units increases, structural reorganization, retention, and synaptic plasticity are enhanced, leading to improved neuromorphic performance in electrolyte‐gated organic ...
Junho Sung   +10 more
wiley   +1 more source

Integral representation of a solution to the Stokes-Darcy problem [PDF]

open access: yes, 2015
With methods of potential theory we develop a representation of a solution of the coupled Stokes-Darcy model in a Lipschitz domain for boundary data in H-1 ...
Medková, Dagmar   +6 more
core   +1 more source

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