Results 11 to 20 of about 79,013 (272)

Variational Theory and Domain Decomposition for Nonlocal Problems [PDF]

open access: yesApplied Mathematics and Computation, 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   +7 more sources

Formulation, analysis and computation of an optimization-based local-to-nonlocal coupling method

open access: yesResults in Applied Mathematics, 2021
We present an optimization-based coupling method for local and nonlocal continuum models. Our approach couches the coupling of the models into a control problem where the states are the solutions of the nonlocal and local equations, the objective is to ...
Marta D’Elia, Pavel Bochev
doaj   +1 more source

A third‐order nonlocal problem with nonlocal conditions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We study an equation with dominated lower‐order terms and nonlocal conditions. Using the Riesz representation theorem and the Schauder fixed‐point theorem, we prove the existence and uniqueness of a generalized solution.
openaire   +2 more sources

Recovering differential operators with nonlocal boundary conditions [PDF]

open access: yesAnalysis and Mathematical Physics, 2015
Inverse spectral problems for Sturm-Liouville operators with nonlocal boundary conditions are studied. As the main spectral characteristics we introduce the so-called Weyl-type function and two spectra, which are generalizations of the well-known Weyl function and Borg's inverse problem for the classical Sturm-Liouville operator.
Yurko, Vjacheslav Anatoljevich   +1 more
openaire   +2 more sources

A unified existence theory for evolution equations and systems under nonlocal conditions [PDF]

open access: yes, 2014
We investigate the effect of nonlocal conditions expressed by linear continuous mappings over the hypotheses which guarantee the existence of global mild solutions for functional-differential equations in a Banach space. A progressive transition from the
Cardinali, Tiziana   +2 more
core   +1 more source

Characteristics of off-waist incident anomalous vortex beams in highly nonlocal media

open access: yesResults in Physics, 2017
In this paper, we focus on the effect of the off-waist incident condition on the propagation characteristics of anomalous vortex beams (AVBs) in nonlocal media. An expression is derived mathematically in order to describe the propagation dynamics of AVBs
Zhen-Feng Yang
doaj   +1 more source

Conditions for logical contextuality and nonlocality [PDF]

open access: yesPhysical Review A, 2021
Contextuality and nonlocality are nonclassical properties exhibited by quantum statistics whose implications profoundly impact both the foundations and applications of quantum theory. In this paper we provide some insights into logical contextuality and inequality-free proofs.
Leonardo Santos, Barbara Amaral
openaire   +1 more source

Is a nonlocal diffusion strategy convenient for biological populations in competition? [PDF]

open access: yes, 2015
We study the convenience of a nonlocal dispersal strategy in a reaction-diffusion system with a fractional Laplacian operator. We show that there are circumstances - namely, a precise condition on the distribution of the resource - under which a nonlocal
Massaccesi, Annalisa, Valdinoci, Enrico
core   +4 more sources

STATIONARY PROBLEMS WITH NONLOCAL BOUNDARY CONDITIONS

open access: yesMathematical Modelling and Analysis, 2001
In this article a stationary problems with general nonlocal boundary conditions is considered. The differential problems and finite difference schemes for solving this problem are investigated. Stability estimates are proved in the maximum norm and the non‐negativity of the solution is investigated.
Čiegis, R.   +3 more
openaire   +5 more sources

Global well-posedness for a nonlocal Gross-Pitaevskii equation with non-zero condition at infinity [PDF]

open access: yes, 2010
We study the Gross-Pitaevskii equation involving a nonlocal interaction potential. Our aim is to give sufficient conditions that cover a variety of nonlocal interactions such that the associated Cauchy problem is globally well-posed with non-zero ...
André de Laire   +15 more
core   +4 more sources

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