Results 91 to 100 of about 2,627,124 (242)

Lower semicontinuity of attractors for non-autonomous dynamical systems [PDF]

open access: yes, 2009
This paper is concerned with the lower semicontinuity of attractors for semilinear non-autonomous differential equations in Banach spaces. We require the unperturbed attractor to be given as the union of unstable manifolds of time-dependent hyperbolic
Langa, José A.   +3 more
core   +1 more source

Optical solitons and modulation instability analysis to the quadratic-cubic nonlinear Schrödinger equation [PDF]

open access: yes, 2018
This paper obtains the dark, bright, dark-bright, dark-singular optical and singular soliton solutions to the nonlinear Schrödinger equation with quadratic-cubic nonlinearity (QC-NLSE), which describes the propagation of solitons through optical fibers ...
Yusuf, Abdullahi   +3 more
core   +1 more source

On the structure and lifespan of smooth solutions for the two-dimensional hyperbolic geometric flow equation

open access: yesAdvances in Nonlinear Analysis
In this article, we investigate the initial value problem for the hyperbolic geometric flow equation, which is derived from hyperbolic geometric flow for Riemannian metric.
Wang Yinxia, Wang Yuzhu, Zhao Feiyan
doaj   +1 more source

Efficient high-order finite difference methods for nonlinear Klein–Gordon equations. I: Variants of the phi-four model and the form-I of the nonlinear Klein–Gordon equation [PDF]

open access: yes, 2015
In this paper, the problem of solving some nonlinear Klein–Gordon equations (KGEs) is considered. Here, we derive different fourth- and sixth-order explicit and implicit algorithms to solve the phi-four equation and the form-I of the nonlinear Klein ...
Queiruga-Dios, Araceli   +3 more
core   +1 more source

Exact solutions of (3 + 1)-dimensional generalized KP equation arising in physics

open access: yesResults in Physics, 2017
In this work, we have obtained some exact solutions to (3 + 1)-dimensional generalized KP Equation. The improved tanϕ(ξ)2-expansion method has been introduced to construct the exact solutions of nonlinear evolution equations.
Syed Tauseef Mohyud-Din   +3 more
doaj   +1 more source

The problem of dynamic cavitation in nonlinear elasticity [PDF]

open access: yes, 2012
The notion of singular limiting induced from continuum solutions (slic-solutions) is applied to the problem of cavitation in nonlinear elasticity, in order to re-assess an example of non-uniqueness of entropic weak solutions (with polyconvex energy)
Miroshnikov, Alexey   +5 more
core   +2 more sources

Nonlinear instability in generalized nonlinear phase diffusion equation

open access: yes, 2003
High-order versions of truncated generalized nonlinear phase diffusion equation of Kuramoto are analyzed. The main common feature of the equations is nonlinear internal energy supply. Numerical solutions are presented for some specific values of equation
Strunin, Dmitry V.
core   +1 more source

Soliton solutions to the time-dependent coupled KdV–Burgers’ equation

open access: yesAdvances in Difference Equations, 2019
In this article, the authors apply the Lie symmetry approach and the modified (G′/G) $( G'/G )$-expansion method for seeking the solutions of time-dependent coupled KdV–Burgers equation.
Aisha Alqahtani, Vikas Kumar
doaj   +1 more source

On hyperbolized nonlinear Schredinger type equations

open access: yesJournal of Physics: Conference Series, 2019
Abstract A nonlinear Schredinger type equation in the case of an unbounded in space operator having, a non-divergent form, is considered. A new approach based on the hyperbolization procedure is suggested. The possibilities of the method proposed are tested.
A.D. Yunakovsky   +2 more
openaire   +1 more source

Dynamic Characteristics of Long-span Cable-net Structures

open access: yes工程科学与技术, 2010
:The long-span cable nets are widely used in practical engineering. For the purpose of providing a basis for anti-wind and anti-earthquake design of this structure, the dynamic characteristics of elliptic hyperbolic paraboloid cable nets were analyzed ...
YANG Li-jun   +3 more
doaj  

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