Results 21 to 30 of about 539,609 (355)

Nonlocal Conduction in a Metawire. [PDF]

open access: yesAdv Mater
A 1D metawire composed of twisted copper wires is designed and realized. This metamaterial exhibits pronounced effects of nonlocal electric conduction according to Ohm's law. The current at one location not only depends on the electric field at that location but also on other locations.
Iglesias Martínez JA   +3 more
europepmc   +2 more sources

Non-real eigenvalues of nonlocal indefinite Sturm–Liouville problems

open access: yesBoundary Value Problems, 2019
The present paper deals with non-real eigenvalues of regular nonlocal indefinite Sturm–Liouville problems. The existence of non-real eigenvalues of indefinite Sturm–Liouville differential equation with nonlocal potential K ( x , t ) $K(x,t)$ associated ...
Fu Sun   +3 more
doaj   +1 more source

Exact scattering waves off nonlocal potentials under Coulomb interaction within Schrödinger's integro-differential equation

open access: yesPhysics Letters B, 2019
An exact solution for the scattering wavefunction from a nonlocal potential in the presence of Coulomb interaction is presented. The approach is based on the construction of a Coulomb Green's function in coordinate space whose associated kernel involves ...
H.F. Arellano, G. Blanchon
doaj   +1 more source

On a multipoint nonlocal initial value problem for a singularly-perturbed first-order ODE [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics, 2019
A linear first order ordinary differential equation (ODE) with a positive parameter $\varepsilon$ and a multipoint nonlocal initial value condition (NLIVC) is considered.
Dovlet M. Dovletov
doaj   +1 more source

Partial differential systems with nonlocal nonlinearities: Generation and solutions [PDF]

open access: yes, 2018
We develop a method for generating solutions to large classes of evolutionary partial differential systems with nonlocal nonlinearities. For arbitrary initial data, the solutions are generated from the corresponding linearized equations.
Beck, Margaret   +3 more
core   +2 more sources

NONLOCAL PROBLEM FOR A MIXED TYPE FOURTH-ORDER DIFFERENTIAL EQUATION WITH HILFER FRACTIONAL OPERATOR

open access: yes, 2020
: In this paper, we consider a non-self-adjoint boundary value problem for a fourth-order differential equation of mixed type with Hilfer operator of fractional integro-differentiation in a positive rectangular domain and with spectral parameter in a ...
T. Yuldashev, Bakhtiyor J. Kadirkulovich
semanticscholar   +1 more source

Nonlocal Symmetries and Generation of Solutions for Partial Differential Equations [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Tychynin, V.   +2 more
openaire   +5 more sources

Distributed optimal control of a nonstandard nonlocal phase field system [PDF]

open access: yes, 2016
We investigate a distributed optimal control problem for a nonlocal phase field model of viscous Cahn-Hilliard type. The model constitutes a nonlocal version of a model for two-species phase segregation on an atomic lattice under the presence of ...
Colli, Pierluigi   +2 more
core   +4 more sources

Free vibrations of nonlocally elastic rods [PDF]

open access: yes, 2019
Several of the Eringen’s nonlocal stress models, including two-phase and purely nonlocal integral models, along with the simplified differential model, are studied in case of free longitudinal vibrations of a nanorod, for various types of boundary ...
Avdeichik, E   +2 more
core   +2 more sources

A new nonlocal nonlinear diffusion equation for image denoising and data analysis [PDF]

open access: yes, 2017
In this paper we introduce and study a new feature-preserving nonlinear anisotropic diffusion for denoising signals. The proposed partial differential equation is based on a novel diffusivity coefficient that uses a nonlocal automatically detected ...
Aletti, Giacomo   +2 more
core   +2 more sources

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