Results 21 to 30 of about 91,889 (335)

Variational Theory and Domain Decomposition for Nonlocal Problems [PDF]

open access: yes, 2011
In this article we present the first results on domain decomposition methods for nonlocal operators. We present a nonlocal variational formulation for these operators and establish the well-posedness of associated boundary value problems, proving a ...
Aksoylu, Burak, Parks, Michael L.
core   +5 more sources

Subcritical nonlocal problems with mixed boundary conditions

open access: yesBulletin of Mathematical Sciences, 2023
By using linking and [Formula: see text]-theorems in this paper we prove the existence of multiple solutions for the following nonlocal problem with mixed Dirichlet–Neumann boundary data, [Formula: see text] where [Formula: see text], [Formula: see text], is the spectral fractional Laplacian operator, [Formula: see text], [Formula: see text], is a ...
Bisci, GM, Ortega, A, Vilasi, L
openaire   +4 more sources

Ritz Method Application to Bending, Buckling and Vibration Analyses of Timoshenko Beams via Nonlocal Elasticity [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2018
Bending, buckling and vibration behaviors of nonlocal Timoshenko beams are investigated in this research using a variational approach. At first, the governing equations of the nonlocal Timoshenko beams are obtained, and then the weak form of these ...
Seyyed Amir Mahdi Ghannadpour
doaj   +1 more source

Free vibration analysis of FGM framed nanostructures using variational-consistent boundary conditions

open access: yesVietnam Journal of Mechanics, 2023
This paper analyses free vibrations of framed nanostructures made of Functionally Graded Material (FGM) based on the Nonlocal Elastic Theory (NET) and the Dynamic Stiffness Method (DSM).
Duong The Hung   +3 more
doaj   +1 more source

Diffusion with nonlocal boundary conditions

open access: yesJournal of Functional Analysis, 2016
We consider second order differential operators $A_ $ on a bounded, Dirichlet regular set $ \subset \mathbb{R}^d$, subject to the nonlocal boundary conditions \[ u(z) = \int_ u(x)\, (z, dx)\quad \mbox{for } z \in \partial . \] Here the function $ : \partial \to \mathscr{M}^+( )$ is $ (\mathscr{M} ( ), C_b( ))$-continuous with $0\leq (z,
Wolfgang Arendt   +2 more
openaire   +2 more sources

Interface conditions for a metamaterial with strong spatial dispersion [PDF]

open access: yes, 2017
Local constitutive relations, i.e. a weak spatial dispersion, are usually considered in the effective description of metamaterials. However, they are often insufficient and effects due to a nonlocality, i.e.
Khrabustovskyi, Andrii   +4 more
core   +3 more sources

Nonlocal Lagrangians for Accelerated Systems [PDF]

open access: yes, 2007
Acceleration-induced nonlocality and the corresponding Lorentz-invariant nonlocal field equations of accelerated systems in Minkowski spacetime are discussed.
Abraham   +12 more
core   +5 more sources

Nonlocal incoherent solitons [PDF]

open access: yes, 2004
We investigate the propagation of partially coherent beams in spatially nonlocal nonlinear media with a logarithmic type of nonlinearity. We derive analytical formulas for the evolution of the beam parameters and conditions for the formation of nonlocal ...
Bang, Ole   +2 more
core   +2 more sources

Sturm–Liouville problem with two point nonlocal second type boundary condition

open access: yesLietuvos Matematikos Rinkinys, 2005
The Sturm–Liouville problemwith one classical boundary condition and other two point second type nonlocal boundary conditions is considered in this paper. Three cases of nonlocal conditions are investigated.
Sigita Pečiulytė, Artūras Štikonas
doaj   +1 more source

Nullity of the second order discrete problem with nonlocal multipoint boundary conditions

open access: yesLietuvos Matematikos Rinkinys, 2015
In this paper, we investigate several second order discrete problems with non-local multipoint boundary conditions and present obtained results about their nullity.
Gailė Paukštaitė, Artūras Štikonas
doaj   +1 more source

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