Results 1 to 10 of about 2,003,558 (249)

Decay of Solutions of Nonlinear Dirac Equations

open access: yesCommunications in Mathematical Physics
We study the long-time behavior of small and large solutions to a broad class of nonlinear Dirac-type equations. Our results are classified in 1D massless and massive cases, 3D general and $n$ dimensional in generality. In the 1D massless case we prove that any globally defined solution converges to zero as time tends to infinity, within a spatial ...
Herr, Sebastian   +2 more
openaire   +4 more sources

Stability of solitary waves in the nonlinear Dirac equation with arbitrary nonlinearity [PDF]

open access: yesPhysical Review E, 2014
35 pages, 13 ...
Shao, Sihong   +5 more
openaire   +3 more sources

Dynamics of a physically nonlinear viscoelastic cylindrical shell with a concentrated mass [PDF]

open access: yesИнженерно-строительный журнал, 2019
It is known that the theory of linear and nonlinear elastic plates and shells is the most developed part of the theory of elasticity. In this area, the necessary equations are obtained and the methods to solve them are developed.
D.A. Khodzhaev   +2 more
doaj   +1 more source

Accurate and Efficient Simulation of Very High-Dimensional Neural Mass Models with Distributed-Delay Connectome Tensors

open access: yesNeuroImage, 2023
This paper introduces methods and a novel toolbox that efficiently integrates high-dimensional Neural Mass Models (NMMs) specified by two essential components. The first is the set of nonlinear Random Differential Equations (RDEs) of the dynamics of each
Anisleidy González Mitjans   +10 more
doaj   +1 more source

Low-regularity integrators for nonlinear Dirac equations

open access: yesMathematics of Computation, 2020
In this work, we consider the numerical integration of the nonlinear Dirac equation and the Dirac–Poisson system (NDEs) under rough initial data. We propose an ultra low-regularity integrator (ULI) for solving the NDEs which enables optimal first-order time convergence in
Katharina, Schratz   +2 more
openaire   +5 more sources

The Dirac equation as a linear tensor equation for one component

open access: yesEuropean Physical Journal C: Particles and Fields
The Dirac equation is one of the most fundamental equations of modern physics. It is a spinor equation, but some tensor equivalents of the equation were proposed previously.
Andrey Akhmeteli
doaj   +1 more source

A graph-theoretic approach to sparse matrix inversion for implicit differential algebraic equations [PDF]

open access: yesMechanical Sciences, 2013
In this paper, we propose an efficient numerical scheme to compute sparse matrix inversions for Implicit Differential Algebraic Equations of large-scale nonlinear mechanical systems.
H. Yoshimura
doaj   +1 more source

The nonlinear Dirac equation in Bose–Einstein condensates: II. Relativistic soliton stability analysis

open access: yesNew Journal of Physics, 2015
The nonlinear Dirac equation for Bose–Einstein condensates (BECs) in honeycomb optical lattices gives rise to relativistic multi-component bright and dark soliton solutions.
L H Haddad, Lincoln D Carr
doaj   +1 more source

Interaction of exact gravitational waves with matter

open access: yesPhysics Letters B
We consider interactions of exact (i.e., solutions of full nonlinear field equations) gravitational waves with matter by using the Einstein-Boltzmann equation.
Morteza Mohseni, Saurya Das
doaj   +1 more source

Nonlinear equations in private derivatives, related to the operator of Dirak

open access: yesНаука. Инновации. Технологии, 2022
Theory of integrable nonlinear equations possessing soliton solutions of a new type - tipper solitons. The operator examines the design proposed by O.I. Bogoyavlensky, and having attractors in the phase space.
Olga Sergeevna Yanovskaya   +1 more
doaj  

Home - About - Disclaimer - Privacy