Results 11 to 20 of about 4,589 (305)

Symmetries and Reductions of Integrable Nonlocal Partial Differential Equations [PDF]

open access: yesSymmetry, 2019
In this paper, symmetry analysis is extended to study nonlocal differential equations. In particular, two integrable nonlocal equations are investigated, the nonlocal nonlinear Schrödinger equation and the nonlocal modified Korteweg–de Vries equation.
Linyu Peng
openaire   +3 more sources

Global solutions for abstract functional differential equations with nonlocal conditions [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
In this paper we study the existence of global solutions for a class of abstract functional differential equation with nonlocal conditions. An application is considered.
Eduardo Hernandez, Sueli M. Tanaka Aki
doaj   +2 more sources

Monotonic Positive Solutions of Nonlocal Boundary Value Problems for a Second-Order Functional Differential Equation [PDF]

open access: yesAbstract and Applied Analysis, 2012
We study the existence of at least one monotonic positive solution for the nonlocal boundary value problem of the second-order functional differential equation x′′(t)=f(t,x(ϕ(t))), t∈(0,1), with the nonlocal condition ∑k=1makx(τk)=x0, x′(0)+∑j=1nbjx′(ηj)=
A. M. A. El-Sayed   +2 more
doaj   +2 more sources

Existence of solutions for an abstract second-order differential equation with nonlocal conditions

open access: yesElectronic Journal of Differential Equations, 2009
We discuss the existence of mild solutions for abstract second-order differential equation with nonlocal conditions. Also we consider some application of our results.
Eduardo Hernandez M.
doaj   +3 more sources

Existence and multiplicity of positive solutions for a nonlocal differential equation

open access: yesBoundary Value Problems, 2011
In this paper, the existence and multiplicity results of positive solutions for a nonlocal differential equation are mainly considered.
Wang Fanglei, An Yukun, Wang Yunhai
doaj   +1 more source

Ghost symmetries [PDF]

open access: yes, 2001
We introduce the notion of a ghost characteristic for nonlocal differential equations. Ghosts are essential for maintaining the validity of the Jacobi identity for the charateristics of nonlocal vector ...
Olver, Peter J.   +5 more
core   +1 more source

On a Nonlocal Boundary Value Problem of a State-Dependent Differential Equation

open access: yes, 2021
In this paper, the existence of absolutely continuous solutions and some properties will be studied for a nonlocal boundary value problem of a state-dependent differential equation. The infinite-point boundary condition and the Riemann–Stieltjes integral
Hanaa Ebead   +2 more
core   +1 more source

Existence and uniqueness of measure solutions for a system of continuity equations with non-local flow [PDF]

open access: yes, 2013
In this paper, we prove existence and uniqueness of measure solutions for the Cauchy problem associated to the (vectorial) continuity equation with a non-local ow.
Crippa, Gianluca   +1 more
core   +1 more source

On the mixed local-nonlocal Hénon equation [PDF]

open access: yes, 2022
In this paper we consider a Hénon-type equation driven by a nonlinear operator obtained as a combination of a local and nonlocal term. We prove existence and non-existence akin to the classical result by Ni, and a stability result as the fractional ...
Salort, Ariel Martin, Vecchi, Eugenio
core   +1 more source

A note on the nonlocal boundary value problem for a third order partial differential equation

open access: yes, 2020
The nonlocal boundary-value problem for a third order partial differential equation in a Hilbert space with a self-adjoint positive definite operator is considered.
Ashyralyev A.   +2 more
core   +2 more sources

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