Results 21 to 30 of about 574 (55)

Trudinger–Moser type inequalities with logarithmic weights in fractional dimensions

open access: yesAdvanced Nonlinear Studies
The purpose of this paper is two-fold. First, we derive sharp Trudinger–Moser inequalities with logarithmic weights in fractional dimensions:  sup∫01w(r)u′(r)β+2dλα1/(β+2)≤1∫01eμα,θ,γuβ+2β+11−γdλθ 1 and γ = 1 are also be considered in this part to ...
Xue Jianwei, Zhang Caifeng, Zhu Maochun
doaj   +1 more source

Local and Global Existence of Strong Solutions to Large Cross Diffusion Systems

open access: yesAdvanced Nonlinear Studies, 2018
We study the solvability of a general class of cross diffusion systems and establish the local and global existence of their strong solutions under the weakest assumption that they are VMO.
Le Dung
doaj   +1 more source

Besov regularity for solutions of p-harmonic equations

open access: yesAdvances in Nonlinear Analysis, 2017
We establish the higher fractional differentiability of the solutions to nonlinear elliptic equations in divergence form, i.e., div⁡𝒜⁢(x,D⁢u)=div⁡F,{\operatorname{div}\mathcal{A}(x,Du)=\operatorname{div}F,} when 𝒜{\mathcal{A}} is a p-harmonic type ...
Clop Albert   +2 more
doaj   +1 more source

Analyticity and Existence of the Keller–Segel–Navier–Stokes Equations in Critical Besov Spaces

open access: yesAdvanced Nonlinear Studies, 2018
This paper deals with the Cauchy problem to the Keller–Segel model coupled with the incompressible 3-D Navier–Stokes equations. Based on so-called Gevrey regularity estimates, which are motivated by the works of Foias and Temam [20], we prove that the ...
Yang Minghua, Fu Zunwei, Liu Suying
doaj   +1 more source

Well/ill-posedness for the dissipative Navier–Stokes system in generalized Carleson measure spaces

open access: yesAdvances in Nonlinear Analysis, 2017
As an essential extension of the well known case β∈(12,1]{\beta\kern-1.0pt\in\kern-1.0pt({\frac{1}{2}},1]} to the hyper-dissipative case β∈(1,∞){\beta\kern-1.0pt\in\kern-1.0pt(1,\infty)}, this paper establishes both well-posedness and ill-posedness (not ...
Wang Yuzhao, Xiao Jie
doaj   +1 more source

Some remarks on Riesz transforms on exterior Lipschitz domains

open access: yesForum of Mathematics, Sigma
Let $n\ge 2$ and $\mathcal {L}=-\mathrm {div}(A\nabla \cdot )$ be an elliptic operator on $\mathbb {R}^n$ . Given an exterior Lipschitz domain $\Omega $ , let $\mathcal {L}_D$ be the elliptic operator $\mathcal {L}$
Renjin Jiang, Sibei Yang
doaj   +1 more source

Some sharp bilinear space-time estimates for the wave equation [PDF]

open access: yesMathematika 62 (2016) 719-737, 2015
We prove a family of sharp bilinear space-time estimates for the half-wave propagator. As a consequence, for radially symmetric initial data, we establish sharp estimates of this kind for a range of exponents beyond the classical range.
arxiv   +1 more source

Homothetic variant of fractional Sobolev space with application to Navier-Stokes system revisited [PDF]

open access: yesarXiv, 2013
This note provides a deeper understanding of the main results obtained in the author's 2007 DPDE paper \cite{Xiao}.
arxiv  

Lectures on normal Coulomb frames in the normal bundle of twodimensional immersionen of higher codimension [PDF]

open access: yesarXiv, 2009
We establish existence and regularity results for normal Coulomb frames in the normal bundle of two-dimensional surfaces of disc-type embedded in Euclidean spaces of higher dimensions.
arxiv  

Global solutions for 2D quadratic Schrodinger equations [PDF]

open access: yesarXiv, 2010
We prove global existence and scattering for a class of quadratic Schrodinger equations in dimension 2. The proof relies on the idea of space-time resonance.
arxiv  

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