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We consider the wellposedness of the fractional Navier-Stokes as a generalization of the wellposedness result in Koch-Tataru's paper. An interesting remark is that our result does not contradict to the well-known ill-posedness result for…

Analysis of PDEs · Mathematics 2022-04-18 Ning Tang

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…

Analysis of PDEs · Mathematics 2020-06-24 Evgueni Dinvay

We consider a convective bulk-surface Cahn--Hilliard system with dynamic boundary conditions and singular potentials. For this model, well-posedness results concerning weak and strong solutions have already been established in the…

Analysis of PDEs · Mathematics 2025-06-24 Andrea Giorgini , Patrik Knopf , Jonas Stange

In this paper, low regularity local well-posedness results for the Kadomtsev--Petviashvili--I equation posed in spatial dimension $d =3$ are proved. Periodic, non-periodic and mixed settings as well as generalized dispersion relations are…

Analysis of PDEs · Mathematics 2023-12-20 Sebastian Herr , Akansha Sanwal , Robert Schippa

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…

Analysis of PDEs · Mathematics 2018-12-14 Nikolay Tzvetkov

In this paper, we prove the local well-posedness in critical Besov spaces for the compressible Navier-Stokes equations with density dependent viscosities under the assumption that the initial density is bounded away from zero.

Analysis of PDEs · Mathematics 2020-05-08 Qionglei Chen , Changxing Miao , Zhifei Zhang

For first-order quasi-linear systems of partial differential equations, we formulate an assumption of a transition from initial hyperbolicity to ellipticity. This assumption bears on the principal symbol of the first-order operator. Under…

Analysis of PDEs · Mathematics 2018-01-17 Baptiste Morisse

In this note we present some recent results for Kirchhoff equations in generalized Gevrey spaces. We show that these spaces are the natural framework where classical results can be unified and extended. In particular we focus on existence…

Analysis of PDEs · Mathematics 2009-12-21 Marina Ghisi , Massimo Gobbino

We prove the local well-posedness for the generalized Korteweg-de Vries equation in $H^s(\mathbb{R})$, $s>1/2$, under general assumptions on the nonlinearity $f(x)$, on the background of an $L^\infty_{t,x}$-function $\Psi(t,x)$, with…

Analysis of PDEs · Mathematics 2021-05-03 José Manuel Palacios

We survey recent work on local well-posedness results for parabolic equations and systems with rough initial data.

Analysis of PDEs · Mathematics 2013-10-15 Herbert Koch , Tobias Lamm

This work is the continuation of the recent paper \cite{D2} devoted to the density-dependent incompressible Euler equations. Here we concentrate on the well-posedness issue in Besov spaces of type $B^s_{\infty,r}$ embedded in the set of…

Analysis of PDEs · Mathematics 2013-05-07 Raphaël Danchin , Francesco Fanelli

We consider the Nernst-Planck equations describing the nonlinear time evolution of multiple ionic concentrations in a two-dimensional incompressible fluid. The velocity of the fluid evolves according to either the Euler or Darcy's…

Analysis of PDEs · Mathematics 2022-11-16 Elie Abdo , Fizay-Noah Lee , Weinan Wang

We prove local well-posedness in the Sobolev spaces $\dot H^s(\mathbb{T})$, with $s>7/2$, for an initial value problem for a nonlocal, cubically nonlinear, dispersive equation that provides an approximate description of the evolution of…

Analysis of PDEs · Mathematics 2018-09-26 John K. Hunter , Jingyang Shu , Qingtian Zhang

We establish global well-posedness for both the defocusing and focusing complex-valued modified Korteweg--de Vries equations on the real line in modulation spaces $M_p^{s,2}(\mathbb{R})$, for all $1\leq p<\infty$ and $0\leq s<3/2-1/p$. We…

Analysis of PDEs · Mathematics 2025-06-25 Saikatul Haque , Rowan Killip , Monica Visan , Yunfeng Zhang

We consider the initial value problem associated to the regularized Benjamin-Ono equation, rBO. Our aim is to establish local and global well-posedness results in weighted Sobolev spaces via contraction principle. We also prove a unique…

Analysis of PDEs · Mathematics 2013-04-25 German Fonseca , Guillermo Rodriguez-Blanco , Wilson Sandoval

In this paper we study the motion of a surface gravity wave with viscosity. In particular we prove two well-posedness results. On the one hand, we establish the local solvability in Sobolev spaces for arbitrary dissipation. On the other…

Analysis of PDEs · Mathematics 2020-11-10 Rafael Granero-Belinchón , Stefano Scrobogna

This work focuses on the mathematical analysis of the Cauchy problem associated with a two-dimensional equation describing the dynamics of a thin fluid film flowing down an inclined flat plate under the influence of gravity and an electric…

Analysis of PDEs · Mathematics 2025-06-23 Manuel Fernando Cortez , Oscar Jarrin , Miguel Yangari

We consider the Hartree equation for infinitely many electrons with a constant external magnetic field. For the system, we show a local well-posedness result when the initial data is the pertubation of a Fermi sea, which is a non-trace…

Mathematical Physics · Physics 2020-03-17 Xin Dong

In this paper we consider the Cauchy problem for higher order weakly hyperbolic equations. We assume that the principal symbol depends only on one space variable and the characteristic roots $\tau_j$ verify the inequality \[\tau_j^2(x) +…

Analysis of PDEs · Mathematics 2023-06-01 Sergio Spagnolo Giovanni Taglialatela

The purpose of this article is to introduce for dispersive partial differential equations with random initial data, the notion of well-posedness (in the Hadamard-probabilistic sense). We restrict the study to one of the simplest examples of…

Analysis of PDEs · Mathematics 2011-03-14 Nicolas Burq , Nikolay Tzvetkov