Results 41 to 50 of about 60,181 (231)
Blow-up and global existence for a general class of nonlocal nonlinear coupled wave equations [PDF]
We study the initial-value problem for a general class of nonlinear nonlocal coupled wave equations. The problem involves convolution operators with kernel functions whose Fourier transforms are nonnegative.
A. Erkip +20 more
core +3 more sources
On a first-order differential system with initial and nonlocal boundary conditions
This paper is devoted to the existence of solutions and the multiplicity of positive solutions of an initial-boundary value problem for a nonlinear first-order differential system with nonlocal conditions.
Ngoc Le Thi Phuong, Long Nguyen Thanh
doaj +1 more source
Nonlocal gravity. Conceptual aspects and cosmological predictions [PDF]
Even if the fundamental action of gravity is local, the corresponding quantum effective action, that includes the effect of quantum fluctuations, is a nonlocal object. These nonlocalities are well understood in the ultraviolet regime but much less in the
Belgacem, Enis +3 more
core +3 more sources
Reaction Diffusion Equations with Nonlocal Boundary and Nonlocal Initial Conditions
The author considers the existence, multiplicity, and asymptotic behavior of solutions for a reaction diffusion equation under nonlocal boundary and nonlocal initial conditions. The main results are the theorems about the existence of multiple solutions for both the time-dependent and the steady-state problems, and that each of the time-dependent ...
openaire +1 more source
The boundary value problem for mixed type equation with nonlocal initial conditions in integral form is considered. The main result states that the nonlocal problem is equivalent to the classical boundary value problem for a loaded equation.
Svetlana V Kirichenko
doaj +3 more sources
This paper deals with the finite-approximate controllability for a class of fractional stochastic evolution equations with nonlocal initial conditions in a Hilbert space.
Yonghong Ding, Yongxiang Li
doaj +1 more source
Nonlinear Volterra delay evolution inclusions subjected to nonlocal initial conditions
This paper deals with a nonlinear Volterra delay evolution inclusion subjected to a nonlocal implicit initial condition. The evolution inclusion involves an $m$-dissipative operator (possibly multivalued and/or nonlinear) and a noncompact interval. We first consider the evolution inclusion subjected to a local initial condition and prove an existence ...
Yu, Yang-Yang +2 more
openaire +2 more sources
Erratum to: Initial conditions and degrees of freedom of non-local gravity
The authors did not realize that some of the initial conditions indicated to solve the Cauchy problem in nonlocal systems are not independent, so that the number of initial conditions is reduced from 4 to 2 in the case of the scalar field.
Gianluca Calcagni +2 more
doaj +1 more source
Stability of well-posed stochastic evolution equation
The stability of a non-classical stochastic evolution equation with impulsive and nonlocal initial conditions is examined from a general perspective.
S.A. Bishop, S.A. Iyase, H.I. Okagbue
doaj +1 more source
Nontrivial solutions of boundary value problems for second order functional differential equations [PDF]
In this paper we present a theory for the existence of multiple nontrivial solutions for a class of perturbed Hammerstein integral equations. Our methodology, rather than to work directly in cones, is to utilize the theory of fixed point index on affine ...
Calamai, Alessandro, Infante, Gennaro
core +1 more source

