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We study the well-posedness of the Cauchy problem with Dirichlet or Neumann boundary conditions associated to an H 1 -critical semilinear wave equation on a smooth bounded 2D domain {\Omega}. First, we prove an appropriate Strichartz type…

偏微分方程分析 · 数学 2010-08-17 S. Ibrahim , R. Jrad

Nowadays we have many methods allowing to exploit the regularising properties of the linear part of a nonlinear dispersive equation (such as the KdV equation, the nonlinear wave or the nonlinear Schroedinger equations) in order to prove…

偏微分方程分析 · 数学 2018-12-14 Nikolay Tzvetkov

We show theoretically that an imposed uniaxial anisotropy leads to new universality classes for the dynamics of active particles suspended in a viscous fluid. In the homogeneous state, their concentration relaxes superdiffusively, stirred…

软凝聚态物质 · 物理学 2026-03-26 Lokrshi Prawar Dadhichi , Suvendra K. Sahoo , K. Vijay Kumar , Sriram Ramaswamy

Studied here is the Zakharov--Kuznetsov equation with a linear transport term posed on a half-strip with nonhomogeneous boundary condition. Using Bourgain-type spaces adapted to the ZK dispersive structure, anisotropic smoothing and…

偏微分方程分析 · 数学 2026-05-25 E Avelino , G Doronin

The Maxwell-Dirac system describes the interaction of an electron with its self-induced electromagnetic field. In space dimension $d=3$ the system is charge-critical, that is, $L^2$-critical for the spinor with respect to scaling, and local…

偏微分方程分析 · 数学 2020-02-25 Sigmund Selberg , Achenef Tesfahun

We study the critical and super-critical dissipative quasi-geostrophic equations in $\bR^2$ or $\bT^2$. Higher regularity of mild solutions with arbitrary initial data in $H^{2-\gamma}$ is proved. As a corollary, we obtain a global…

偏微分方程分析 · 数学 2009-12-09 Hongjie Dong

In this paper, we focus on a new wave equation described wave propagation in the attenuation medium. In the first part of this paper, based on the time-domain space fractional wave equation, we formulate the frequency-domain equation named…

偏微分方程分析 · 数学 2021-02-23 Junxiong Jia , Shigang Yu , Jigen Peng , Jinghuai Gao

We study diffusion-type equations supported on structures that are randomly varying in time. After settling the issue of well-posedness, we focus on the asymptotic behavior of solutions: our main result gives sufficient conditions for…

动力系统 · 数学 2020-04-28 Stefano Bonaccorsi , Francesca Cottini , Delio Mugnolo

In the present paper, we consider the Cauchy problem of nonlinear Schr\"odinger equations with a derivative nonlinearity which depends only on $\bar{u}$. The well-posedness of the equation at the scaling subcritical regularity was proved by…

偏微分方程分析 · 数学 2018-06-08 Hiroyuki Hirayama

We study the critical dissipative quasi-geostrophic equations in $\bR^2$ with arbitrary $H^1$ initial data. After showing certain decay estimate, a global well-posedness result is proved by adapting the method in [11] with a suitable…

偏微分方程分析 · 数学 2007-05-23 Hongjie Dong , Dapeng Du

We study the random data problem for 3D, defocusing, cubic nonlinear Schr\"odinger equation in $H_x^s(\mathbb{R}^3)$ with $s<\frac 12$. First, we prove that the almost sure local well-posedness holds when $\frac{1}{6}\leqslant s<\frac 12$…

偏微分方程分析 · 数学 2022-10-26 Jia Shen , Avy Soffer , Yifei Wu

We consider the well-posedness of the initial value problem associated to the k-generalized Zakharov-Kuznetsov equation in fractional weighted Sobolev spaces. Our method of proof is based on the contraction mapping principle and it mainly…

偏微分方程分析 · 数学 2015-10-14 German E. Fonseca , Miguel A. Pachon

In this work we establish the well-posedness for infinitesimal dislocation based gradient viscoplasticity with isotropic hardening for general gradient monotone plastic flows. We assume an additive split of the displacement gradient into…

偏微分方程分析 · 数学 2014-11-06 Nataliya Kraynyukova , Patrizio Neff , Sergiy Nesenenko , Krzysztof Chełmiński

We consider the wave and Klein-Gordon equations on the real hyperbolic space $\mathbb{H}^{n}$ ($n \geq2$) in a framework based on weak-$L^{p}$ spaces. First, we establish dispersive estimates on Lorentz spaces in the context of…

偏微分方程分析 · 数学 2024-07-17 Lucas C. F. Ferreira , Pham Truong Xuan

We propose a general strategy for solving nonlinear integro-differential evolution problems with periodic boundary conditions, where no direct maximum/minimum principle is available. This is motivated by the study of recent macroscopic…

偏微分方程分析 · 数学 2022-05-17 Maria Bruna , Martin Burger , Antonio Esposito , Simon Schulz

We prove the well-posedness of a general evolution reaction-nonlocal diffusion problem under two sets of assumptions. In the first set, the main hypothesis is the Lipschitz continuity of the range kernel and the bounded variation of the…

偏微分方程分析 · 数学 2024-01-26 Gonzalo Galiano

We consider a viscous incompressible fluid below the air and above a fixed bottom. The fluid dynamics is governed by the gravity-driven incompressible Navier-Stokes equations, and the effect of surface tension is neglected on the free…

偏微分方程分析 · 数学 2019-11-12 Yanjin Wang

We study the well-posedness of the Bayesian inverse problem for scalar hyperbolic conservation laws where the statistical information about inputs such as the initial datum and (possibly discontinuous) flux function are inferred from noisy…

数值分析 · 数学 2021-07-23 Siddhartha Mishra , David Ochsner , Adrian M. Ruf , Franziska Weber

We consider surface quasi-geostrophic equation with dispersive forcing and critical dissipation. We prove global existence of smooth solutions given sufficiently smooth initial data. This is done using a maximum principle for the solutions…

偏微分方程分析 · 数学 2015-05-13 Alexander Kiselev , Fedor Nazarov

This paper is the first part of a trilogy dedicated to a proof of global well-posedness and scattering of the (4+1)-dimensional mass-less Maxwell-Klein-Gordon equation (MKG) for any finite energy initial data. The main result of the present…

偏微分方程分析 · 数学 2015-03-06 Sung-Jin Oh , Daniel Tataru
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