Results 11 to 20 of about 1,055,018 (270)

Nonlinear Pauli Equation

open access: yesCommunications in Analysis and Mechanics, 2022
In the framework of the self-consistent Maxwell-Pauli theory, the non-linear Pauli equation is obtained. Stationary and nonstationary solutions of the nonlinear Pauli equation for the hydrogen atom are studied. We show that spontaneous emission and the related rearrangement of the internal structure of an atom, which is traditionally called a ...
openaire   +2 more sources

Well-posedness of a higher-order Schrödinger–Poisson–Slater system

open access: yesBoundary Value Problems, 2018
In this paper, we show the global well-posedness of a higher-order nonlinear Schrödinger equation. Specifically, we consider a system of infinitely many coupled higher-order Schrödinger–Poisson–Slater equations with a self-consistent Coulomb potential ...
Saber Trabelsi
doaj   +1 more source

Integrable systems and modular forms of level 2 [PDF]

open access: yes, 2006
A set of nonlinear differential equations associated with the Eisenstein series of the congruent subgroup $\Gamma_0(2)$ of the modular group $SL_2(\mathbb{Z})$ is constructed. These nonlinear equations are analogues of the well known Ramanujan equations,
Ablowitz, Mark J   +2 more
core   +2 more sources

The Sine-Cosine Wavelet and Its Application in the Optimal Control of Nonlinear Systems with Constraint [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2013
In this paper, an optimal control of quadratic performance index with nonlinear constrained is presented. The sine-cosine wavelet operational matrix of integration and product matrix are introduced and applied to reduce nonlinear differential equations ...
R. Hajmohammadi   +2 more
doaj   +1 more source

Explicit Solution to Large Deformation of Cantilever Beam by Improved Homotopy Analysis Method II: Vertical and Horizontal Displacements

open access: yesApplied Sciences, 2022
Explicit solutions to vertical and horizontal displacements are derived for large deformation of a cantilever beam under point load at the free end by an improved homotopy analysis method (IHAM).
Yinshan Li   +3 more
doaj   +1 more source

Meromorphic solutions of nonlinear ordinary differential equations [PDF]

open access: yes, 2010
Exact solutions of some popular nonlinear ordinary differential equations are analyzed taking their Laurent series into account. Using the Laurent series for solutions of nonlinear ordinary differential equations we discuss the nature of many methods for
Aslan   +52 more
core   +1 more source

A Unified Approach to Some Classes of Nonlinear Integral Equations

open access: yesJournal of Function Spaces, 2014
We are going to discuss some important classes of nonlinear integral equations such as integral equations of Volterra-Chandrasekhar type, quadratic integral equations of fractional orders, nonlinear integral equations of Volterra-Wiener-Hopf type, and ...
Nurgali K. Ashirbayev   +2 more
doaj   +1 more source

SIAC Filtering for Nonlinear Hyperbolic Equations [PDF]

open access: yes, 2015
We present the results of the symmetric and one-sided Smoothness-Increasing Accuracy-Conserving (SIAC) filter applied to a discontinuous Galerkin (DG) approximation for two examples of nonlinear hyperbolic conservation laws.
Li, Xiaozhou, Ryan, Jennifer
core   +1 more source

On Galilean invariance and nonlinearity in electrodynamics and quantum mechanics [PDF]

open access: yes, 2000
Recent experimental results on slow light heighten interest in nonlinear Maxwell theories. We obtain Galilei covariant equations for electromagnetism by allowing special nonlinearities in the constitutive equations only, keeping Maxwell's equations ...
Barut   +17 more
core   +2 more sources

Piecewise-linear and bilinear approaches to nonlinear differential equations approximation problem of computational structural mechanics

open access: yesMATEC Web of Conferences, 2017
This paper presents a bilinear approach to nonlinear differential equations system approximation problem. Sometimes the nonlinear differential equations right-hand sides linearization is extremely difficult or even impossible.
Leibov Roman
doaj   +1 more source

Home - About - Disclaimer - Privacy