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We regard the Cauchy problem for a particular Whitham-Boussinesq system modelling surface waves of an inviscid incompressible fluid layer. The system can be seen as a weak nonlocal dispersive perturbation of the shallow water system. The…

偏微分方程分析 · 数学 2020-06-24 Evgueni Dinvay

We consider two types of the generalized Korteweg - de Vries equation, where the nonlinearity is given with or without absolute values, and, in particular, including the low powers of nonlinearity, an example of which is the Schamel…

偏微分方程分析 · 数学 2023-01-18 Isaac Friedman , Oscar Riaño , Svetlana Roudenko , Diana Son , Kai Yang

A reaction-diffusion equation with power nonlinearity formulated either on the half-line or on the finite interval with nonzero boundary conditions is shown to be locally well-posed in the sense of Hadamard for data in Sobolev spaces. The…

偏微分方程分析 · 数学 2018-10-15 A. Alexandrou Himonas , Dionyssios Mantzavinos , Fangchi Yan

We study the Cauchy problem for a generalized derivative nonlinear Schr\"odinger equation with the Dirichlet boundary condition. We establish the local well-posedness results in the Sobolev spaces $H^1$ and $H^2$. Solutions are constructed…

偏微分方程分析 · 数学 2025-02-27 Masayuki Hayashi , Tohru Ozawa

We show that the Benjamin-Ono equation is globally well-posed in $H^s(\R)$ for $s \geq 1$. This is despite the presence of the derivative in the non-linearity, which causes the solution map to not be uniformly continuous in $H^s$ for any…

偏微分方程分析 · 数学 2007-05-23 Terence Tao

In this paper, complex Ginzburg-Landau (CGL) equations with superlinear growth terms are studied. We discuss the local well-posedness in the energy space H1 for the initial-boundary value problem of the equations in general domains. The…

偏微分方程分析 · 数学 2022-09-13 Takanori Kuroda , Mitsuharu Ôtani

We study the dispersive properties of the wave equation associated with the shifted Laplace-Beltrami operator on Damek-Ricci spaces, and deduce Strichartz estimates for a large family of admissible pairs. As an application, we obtain global…

偏微分方程分析 · 数学 2010-12-06 Jean-Philippe Anker , Vittoria Pierfelice , Maria Vallarino

The paper deals with local well-posedness, global existence and blow-up results for reaction--diffusion equations coupled with nonlinear dynamical boundary conditions.

偏微分方程分析 · 数学 2026-01-06 Alessio Fiscella , Enzo Vitillaro

We study the infinite-energy solutions of the Cahn-Hilliard equation in the whole 3D space in uniformly local phase spaces. In particular, we establish the global existence of solutions for the case of regular potentials of arbitrary…

偏微分方程分析 · 数学 2012-05-08 Jon Pennant , Sergey Zelik

We prove local and global well-posedness results for the Gabitov-Turitsyn or dispersion managed nonlinear Schr\"odinger equation with a large class of nonlinearities and arbitrary average dispersion on $L^2(\mathbb{R})$ and…

偏微分方程分析 · 数学 2022-12-15 Mi-Ran Choi , Dirk Hundertmark , Young-Ran Lee

We show the local in time well-posedness of the Cauchy problem for the Kadomtsev-Petviashvili II equation for initial data in the non-isotropic Sobolev space H^{s_1,s_2}(R^2) with s_1 > -1/2 and s_2 \geq 0. On the H^{s_1,0}(R^2) scale this…

偏微分方程分析 · 数学 2007-05-23 M. Hadac

In this paper, we study the dispersive properties of the wave equation associated with the shifted Laplace-Beltrami operator on real hyperbolic spaces, and deduce Strichartz estimates for a large family of admissible pairs. As an…

偏微分方程分析 · 数学 2011-11-29 Jean-Philippe Anker , Vittoria Pierfelice , Maria Vallarino

Recently, there has been a wide interest in the study of aggregation equations and Patlak-Keller-Segel (PKS) models for chemotaxis with degenerate diffusion. The focus of this paper is the unification and generalization of the…

偏微分方程分析 · 数学 2015-05-19 Jacob Bedrossian , Nancy Rodríguez , Andrea Bertozzi

We complete the known results on the local Cauchy problem in Sobolev spaces for the KdV-Burgers equation by proving that this equation is well-posed in $ H^{-1}(\R) $ with a solution-map that is analytic from $H^{-1}(\R) $ to…

偏微分方程分析 · 数学 2009-12-31 Luc Molinet , Stéphane Vento

We prove local well-posedness and finite-time blow-up for a restricted fourth-order Prandtl equation posed on the half-line with clamped boundary conditions. The equation arises from a two-dimensional fourth-order Prandtl system via an…

偏微分方程分析 · 数学 2026-02-04 Ik Hyun Choi

We consider the problem of establishing nonlinear smoothing as a general feature of nonlinear dispersive equations, i.e. the improved regularity of the integral term in Duhamel's formula, with respect to the initial data and the…

偏微分方程分析 · 数学 2023-02-08 Simão Correia , Filipe Oliveira , Jorge Drumond Silva

We study local-time well-posedness and breakdown for solutions of regularized Saint-Venant equations (regularized classical shallow water equations) recently introduced by Clamond and Dutykh. The system is linearly non-dispersive, and…

偏微分方程分析 · 数学 2020-01-08 Jian-Guo Liu , Robert L. Pego , Yue Pu

In this paper we obtain well-posedness for a class of semilinear weakly degenerate reaction-diffusion systems with Robin boundary conditions. This result is obtained through a Gagliardo-Nirenberg interpolation inequality and some embedding…

偏微分方程分析 · 数学 2015-09-21 Giuseppe Floridia

We establish sharp local existence results for the Hirota-Satsuma system in $H^k(\mathbb{R}) \times H^s(\mathbb{R})$, depending on the ratio between the dispersion of the components. These theorems significantly generalize previous works,…

偏微分方程分析 · 数学 2026-05-08 Rafael Deiga

This work is concerned with the Cauchy problem for a coupled Schr\"odinger-Benjamin-Ono system $$\left \{ \begin{array}{l} i\partial_tu+\partial_x^2u=\alpha uv,\qquad t\!\in\![-T,T], \ x\!\in\!\mathbb R,\\ \partial_tv+\nu\mathcal…

偏微分方程分析 · 数学 2014-12-18 Leandro Domingues