Results 41 to 50 of about 1,078 (81)

On the existence of maximizers for a family of Restriction Theorems [PDF]

open access: yes, 2010
We prove the existence of maximizers for a general family of restrictions operators, up to the end-point. We also provide some counterxamples in the end-point case.
arxiv   +1 more source

Blow-up of solutions for Euler-Bernoulli equation with nonlinear time delay

open access: yesOpen Mathematics
We study the Euler-Bernoulli equations with time delay: utt+Δ2u−g1∗Δ2u+g2∗Δu+μ1ut(x,t)∣ut(x,t)∣m−2+μ2ut(x,t−τ)∣ut(x,t−τ)∣m−2=f(u),{u}_{tt}+{\Delta }^{2}u-{g}_{1}\ast {\Delta }^{2}u+{g}_{2}\ast \Delta u+{\mu }_{1}{u}_{t}\left(x,t){| {u}_{t}\left(x,t ...
Lin Rongrui, Gao Yunlong, She Lianbing
doaj   +1 more source

Some estimates for imaginary powers of the Laplace operator in variable Lebesgue spaces and applications [PDF]

open access: yesarXiv, 2013
In this paper we study some estimates of norms in variable exponent Lebesgue spaces for a singular integral operators that are imaginary powers of the Laplace operator in $\R^n$. Using Mellin transform argument, from this estimates we obtain boundedness for a family of maximal operators in variable exponent Lebesgue spaces, which are closely related to
arxiv  

Time decay of scaling invariant Schroedinger equations on the plane [PDF]

open access: yes, 2014
We prove the sharp L^1-L^{\infty} time-decay estimate for the 2D-Schroedinger equation with a general family of scaling critical electromagnetic potentials.
arxiv   +1 more source

Diverse solitary wave solutions of fractional order Hirota-Satsuma coupled KdV system using two expansion methods

open access: yesAlexandria Engineering Journal, 2023
The generalized Hirota-Satsuma coupled KdV system with fractional-order derivative plays a significant role to simulate the interaction of nearby identical-weight particles in a crystal lattice structure, two long waves interaction with different ...
H.M. Shahadat Ali   +4 more
doaj  

Global Strichartz estimates for nontrapping perturbations of the Laplacian [PDF]

open access: yesarXiv, 1999
The authors prove global Strichartz estimates for compact perturbations of the wave operator in odd dimensions when a non-trapping assumption is satisfied.
arxiv  

Application of scaling invariance approach, P-test and soliton solutions for couple of dynamical models

open access: yesResults in Physics, 2021
In the current article, we will apply the scaling invariance technique to find conservation laws (CLs) for the nonlinear Chiral Schrödinger equation (NLCSE) with variable coefficients and the (2+1)-dimensional Maccari system.
Azhar Bashir   +5 more
doaj  

Some calculus with extensive quantities: wave equation [PDF]

open access: yesarXiv, 2003
We take some first steps in providing a synthetic theory of distributions. In particular, we are interested in the use of distribution theory as foundation, not just as tool, in the study of the wave equation.
arxiv  

Global well-posedness of the energy subcritical nonlinear wave equation with initial data in a critical space [PDF]

open access: yesarXiv, 2021
In this paper we prove global well-posedness for the defocusing, energy-subcritical, nonlinear wave equation on $\mathbb{R}^{1 + 3}$ with initial data in a critical Besov space. No radial symmetry assumption is needed.
arxiv  

Theoretical analysis of a water wave model with a nonlocal viscous dispersive term using the diffusive approach

open access: yesAdvances in Nonlinear Analysis, 2017
In this paper, we study the following water wave model with a nonlocal viscous term:
Goubet Olivier, Manoubi Imen
doaj   +1 more source

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