Results 41 to 50 of about 319 (78)

Utilizing the extended tanh-function technique to scrutinize fractional order nonlinear partial differential equations

open access: yesPartial Differential Equations in Applied Mathematics, 2023
In a range of nonlinear fields, for example molecular biology, physics in plasma, quantum mechanics, elastic media, nonlinear optics, the surface of water waves, and others, many complicated nonlinear behaviors can be pronounced using nonlinear ...
U.H.M. Zaman   +3 more
doaj  

Front blocking in the presence of gradient drift [PDF]

open access: yesarXiv, 2018
In this paper we derive quantitative conditions under which a compactly supported drift term blocks the propagation of a traveling wave in a straight cylinder in dimension $n \geq 3$ under the condition that the drift has a potential.
arxiv  

Robustness for a Liouville type theorem in exterior domains [PDF]

open access: yes, 2012
We are interested in the robustness of a Liouville type theorem for a reaction diffusion equation in exterior domains. Indeed H. Berestycki, F. Hamel and H. Matano (2009) proved such a result as soon as the domain satisfies some geometric properties. We investigate here whether their result holds for perturbations of the domain.
arxiv   +1 more source

Exact solutions for the ion sound Langmuir wave model by using two novel analytical methods

open access: yesResults in Physics, 2020
In the present paper, the system of equations for the ion sound and Langmuir waves (SEISLWs) is considered to obtain the new solitary wave solutions of the non-linear evolution equations. Here, we used the relatively two new analytical methods to achieve
A. Tripathy, S. Sahoo
doaj  

Construction of exact travelling waves for the Benjamin-Bona-Mahony equation on networks [PDF]

open access: yes, 2013
We are interested in the existence of travelling waves for the Benjamin-Bona-Mahony equation on a network. First we construct an explicit wave, defined in $\mathbb{R}$. Then, we use this wave to derive some conditions on the coefficients appearing in the equations and on the geometry of the network to ensure the existence of travelling waves on the ...
arxiv   +1 more source

Closed-form solutions to the conformable space-time fractional simplified MCH equation and time fractional Phi-4 equation

open access: yesResults in Physics, 2020
The time-fractional problem is a class of important models to represent the real phenomena. We construct new solitary waves for the space-time fractional simplified modified Camassa-Holm (MCH) and the time fractional Phi-4 equations using the unified ...
Mahmoud A.E. Abdelrahman   +1 more
doaj  

Outbreak of Klebsiella pneumoniae ST11 Resistant To Ceftazidime-Avibactam Producing KPC-31 and the Novel Variant KPC-115 during COVID-19 Pandemic in Argentina. [PDF]

open access: yesMicrobiol Spectr, 2022
Nicola F   +9 more
europepmc   +1 more source

Small data scattering and soliton stability in $\dot{H}^{-\frac16}$ for the quartic KdV Equation [PDF]

open access: yesarXiv, 2010
In this note we prove scattering for perturbations of solitons in the scaling space appropriate for the quartic nonlinearity, namely $\dot{H}^{-\frac16}$. The article relies strongly on refined estimates for a KdV equation linearized at the soliton.
arxiv  

Travelling wave solutions and spreading speeds for a scalar age-structured equation with nonlocal diffusion

open access: yesEuropean Journal of Applied Mathematics
In this paper, we study the existence of travelling wave solutions and the spreading speed for the solutions of an age-structured epidemic model with nonlocal diffusion.
Arnaud Ducrot, Hao Kang
doaj   +1 more source

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