Results 1 to 10 of about 47,698 (169)

Stochastic models associated to a Nonlocal Porous Medium Equation [PDF]

open access: yesModern Stochastics: Theory and Applications, 2018
The nonlocal porous medium equation considered in this paper is a degenerate nonlinear evolution equation involving a space pseudo-differential operator of fractional order.
Alessandro De Gregorio
doaj   +4 more sources

On the nonlinear impulsive Ψ–Hilfer fractional differential equations [PDF]

open access: yesMathematical Modelling and Analysis, 2020
In this paper, we consider the nonlinear Ψ-Hilfer impulsive fractional differential equation. Our main objective is to derive the formula for the solution and examine the existence and uniqueness of solutions.
Kishor D. Kucche   +2 more
doaj   +6 more sources

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.
Peng, Linyu
openaire   +3 more sources

Symmetry and Intertwining Operators for the Nonlocal Gross-Pitaevskii Equation [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
We consider the symmetry properties of an integro-differential multidimensional Gross-Pitaevskii equation with a nonlocal nonlinear (cubic) term in the context of symmetry analysis using the formalism of semiclassical asymptotics.
Aleksandr L. Lisok   +2 more
doaj   +3 more sources

Pull-in Instability Analysis of a Nanocantilever Based on the ‎Two-Phase Nonlocal Theory of Elasticity [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
This paper deals with the pull-in instability of cantilever nano-switches subjected to electrostatic and intermolecular forces in the framework of the two-phase nonlocal theory of elasticity.
Gennadi Mikhasev   +2 more
doaj   +1 more source

Semiclassical Approach to the Nonlocal Kinetic Model of Metal Vapor Active Media

open access: yesMathematics, 2021
A semiclassical approach based on the WKB–Maslov method is developed for the kinetic ionization equation in dense plasma with approximations characteristic of metal vapor active media excited by a contracted discharge.
Alexander V. Shapovalov   +1 more
doaj   +1 more source

Longitudinal Vibration of Nanobeams by Two-Phase Local/Nonlocal Elasticity, Rayleigh Theory, and Generalized Differential Quadrature Method [PDF]

open access: yesMechanics of Advanced Composite Structures, 2023
To solve a differential equation of motion via more reliable procedures, it is essential to realize their efficiency. Whether Rayleigh's theory can be a compatible platform with two-phase local/nonlocal elasticity to render more reliable results compared
Reza Nazemnezhad, Roozbeh Ashrafian
doaj   +1 more source

Nonlocal Fractional Differential Equations and Applications [PDF]

open access: yesComplex Analysis and Operator Theory, 2020
Boundary value problems for nonlocal fractional elliptic equations with parameter in Banach spaces are studied. Uniform $L_p$-separability properties and sharp resolvent estimates are obtained for elliptic equations in terms of fractional derivatives.
openaire   +2 more sources

Non-real eigenvalues of nonlocal indefinite Sturm–Liouville problems

open access: yesBoundary Value Problems, 2019
The present paper deals with non-real eigenvalues of regular nonlocal indefinite Sturm–Liouville problems. The existence of non-real eigenvalues of indefinite Sturm–Liouville differential equation with nonlocal potential K ( x , t ) $K(x,t)$ associated ...
Fu Sun   +3 more
doaj   +1 more source

On a multipoint nonlocal initial value problem for a singularly-perturbed first-order ODE [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics, 2019
A linear first order ordinary differential equation (ODE) with a positive parameter $\varepsilon$ and a multipoint nonlocal initial value condition (NLIVC) is considered.
Dovlet M. Dovletov
doaj   +1 more source

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