Results 31 to 40 of about 79,013 (272)

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,
Arendt, Wolfgang   +2 more
openaire   +3 more sources

On positive eigenfunctions of Sturm‐Liouville problem with nonlocal two‐point boundary condition

open access: yesMathematical Modelling and Analysis, 2007
Positive eigenvalues and corresponding eigenfunctions of the linear Sturm‐Liouville problem with one classical boundary condition and another nonlocal two‐point boundary condition are considered in this paper.
Sigita Pečiulytė, Artūras Štikonas
doaj   +1 more source

Investigation of spectrum curves for a Sturm-Liouville problem with two-point nonlocal boundary conditions

open access: yesMathematical Modelling and Analysis, 2020
The article investigates the Sturm–Liouville problem with one classical and another nonlocal two-point boundary condition. We analyze zeroes, poles and critical points of the characteristic function and how the properties of this function depend on ...
Kristina Bingelė   +2 more
doaj   +1 more source

Nonlocal evolution inclusions under weak conditions [PDF]

open access: yesAdvances in Difference Equations, 2018
The authors investigate evolution inclusions given by multivalued perturbations of \(m\)-dissipative operators with nonlocal initial conditions. The system has the form \[ \dot{y}(s)\in Ay(s)+F(s,y(s)),\, s\in I=[t_0,T],\, y_0(t_0)=g(y(\cdot)), \] where \(A:D(A)\subset X\rightrightarrows X\) is a \(m\)-dissipative operator, \(F:I\times X ...
Shamas Bilal   +4 more
openaire   +3 more sources

A problem with nonlocal integral condition of the second kind for one-dimensional hyperbolic equation

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2016
In this paper, we consider a problem for a one-dimensional hyperbolic equation with nonlocal integral condition of the second kind. Uniqueness and existence of a generalized solution are proved. In order to prove this statement we suggest a new approach.
Ludmila S Pulkina, Alesya E Savenkova
doaj   +1 more source

Diffusion with nonlocal Robin boundary conditions [PDF]

open access: yesJournal of the Mathematical Society of Japan, 2018
Revision based on the comments of the referee; final ...
ARENDT, Wolfgang   +2 more
openaire   +4 more sources

Solitary waves in nonlocal NLS with dispersion averaged saturated nonlinearities [PDF]

open access: yes, 2017
A nonlinear Schr\"odinger equation (NLS) with dispersion averaged nonlinearity of saturated type is considered. Such a nonlocal NLS is of integro-differential type and it arises naturally in modeling fiber-optics communication systems with periodically ...
Hundertmark, Dirk   +3 more
core   +3 more sources

The Extent of Multi-particle Quantum Non-locality

open access: yes, 2005
It is well known that entangled quantum states can be nonlocal: the correlations between local measurements carried out on these states cannot always be reproduced by local hidden variable models.
Jones, Nick S.   +2 more
core   +1 more source

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

Relations between Spectrum Curves of Discrete Sturm-Liouville Problem with Nonlocal Boundary Conditions and Graph Theory. II

open access: yesLietuvos Matematikos Rinkinys, 2021
In this paper, relations between discrete Sturm--Liouville problem with nonlocal integral boundary condition characteristics (poles, critical points, spectrum curves) and graphs characteristics (vertices, edges and faces) were found. The previous article
Jonas Vitkauskas, Artūras Štikonas
doaj   +1 more source

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