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The goal of this article is to present a local exact controllability result for the 2 and 3-dimensional compressible Navier-Stokes equations on a constant target trajectory when the controls act on the whole boundary. Our study is then…

Analysis of PDEs · Mathematics 2015-12-22 Sylvain Ervedoza , Olivier Glass , Sergio Guerrero

In this article, we prove that the nonlinear Kawahara equation on the periodic domain \(\mathbb{T}\) (the unit circle in the plane) is globally approximately controllable in \(H^s(\mathbb{T})\) for \(s \in \mathbb{N}\), at any time \(T >…

Analysis of PDEs · Mathematics 2024-12-12 Sakil Ahamed , Debanjit Mondal

The initial value problems for the Korteweg-de Vries (KdV) and modified KdV (mKdV) equations under periodic and decaying boundary conditions are considered. These initial value problems are shown to be globally well-posed in all $L^2$-based…

Analysis of PDEs · Mathematics 2007-05-23 J. Colliander , M. Keel , G. Staffilani , H. Takaoka , T. Tao

We investigate a class of higher-order nonlinear dispersive equations posed on the circle, subject to additive forcing by a finite-dimensional control. Our main objective is to establish approximate controllability by using the…

Analysis of PDEs · Mathematics 2025-04-25 Debanjit Mondal

We study the Cauchy problem for one-dimensional dispersive equations posed on $\mathbb{R} $, under the hypotheses that the dispersive operator behaves, for high frequencies, as a Fourier multiplier by $ i |\xi|^\alpha \xi $ with $ 1 \le…

Analysis of PDEs · Mathematics 2025-11-03 Luc Molinet , Tomoyuki Tanaka

In this article we study the local controllability of the one-dimensional Cahn-Hilliard-Navier-Stokes equation, that is Cahn-Hilliard-Burgers' equation, around a certain steady state using a localized interior control acting only in the…

Optimization and Control · Mathematics 2026-02-02 Manika Bag , Sheetal Dharmatti , Subrata Majumdar , Debanjana Mitra

We consider the IVP associated to the generalized KdV equation with low degree of non-linearity \begin{equation*} \partial_t u + \partial_x^3 u \pm |u|^{\alpha}\partial_x u = 0,\; x,t \in \mathbb{R},\;\alpha \in (0,1). \end{equation*} By…

Analysis of PDEs · Mathematics 2020-12-01 Felipe Linares , Hayato Miyazaki , Gustavo Ponce

We are interested in some properties related to the solutions of non-local diffusion equations with divergence free drift. Existence, maximum principle and a positivity principle are proved. In order to study Holder regularity, we apply a…

Analysis of PDEs · Mathematics 2012-12-14 Diego Chamorro

This paper is concerned with the local well-posedness for the higher-order generalized KdV type equation with low-degree of nonlinearity. The equation arises as a non-integrable and lower nonlinearity version of the higher-order KdV…

Analysis of PDEs · Mathematics 2021-09-07 Hayato Miyazaki

This work concerns the study of persistence property in polynomial weighted spaces for solutions of the generalized fractional KdV equation in any spatial dimension $d\geq 1$. By establishing well-posedness results in conjunction with some…

Analysis of PDEs · Mathematics 2024-10-14 Alysson Cunha , Oscar Riaño

We prove that the Schr\"odinger equation is approximately controllable in Sobolev spaces $H^s$, $s>0$ generically with respect to the potential. We give two applications of this result. First, in the case of one space dimension, combining…

Mathematical Physics · Physics 2009-05-18 Vahagn Nersesyan

In this note we report local well-posedness results for the Cauchy problems associated to generalized KdV type equations with dissipative perturbation for given data in the low regularity $L^2$-based Sobolev spaces. The method of proof is…

Analysis of PDEs · Mathematics 2017-05-02 Xavier Carvajal , Mahendra Panthee

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…

Analysis of PDEs · Mathematics 2023-02-08 Simão Correia , Filipe Oliveira , Jorge Drumond Silva

We establish local exact control and local exponential stability of periodic solutions of fifth order Korteweg-de Vries type equations in $H^s(\mathbb{T})$, $s>2$. A dissipative term is incorporated into the control which, along with a…

Analysis of PDEs · Mathematics 2017-06-16 Cynthia Flores , Derek L. Smith

The aim of this paper is to study the controllability and stabilization for the Benjamin equation on a periodic domain $\mathbb{T}$. We show that the Benjamin equation is globally exactly controllable and globally exponentially stabilizable…

Analysis of PDEs · Mathematics 2019-04-09 M. Panthee , F. Vielma Leal

We tackle a nonlinear optimal control problem for a stochastic differential equation in Euclidean space and its state-linear counterpart for the Fokker-Planck-Kolmogorov equation in the space of probabilities. Our approach is founded on a…

Optimization and Control · Mathematics 2024-09-23 Roman Chertovskih , Nikolay Pogodaev , Maxim Staritsyn , A. Pedro Aguiar

(Due to the limit on the number of characters for an abstract set by arXiv, the full abstract can not be displayed here. See the abstract in the paper.) We study dispersive equations with a time non-homogeneous modulation acting on the…

Analysis of PDEs · Mathematics 2024-10-22 Khalil Chouk , Massimiliano Gubinelli , Guopeng Li , Jiawei Li , Tadahiro Oh

We study the modulated Korteweg-de~Vries equation (KdV) on the circle with a time non-homogeneous modulation acting on the linear dispersion term. By adapting the normal form approach to the modulated setting, we prove sharp unconditional…

Analysis of PDEs · Mathematics 2026-02-25 Massimiliano Gubinelli , Guopeng Li , Jiawei Li , Tadahiro Oh

In recent years, controllability problems for dispersive systems have been extensively studied. This work is dedicated to proving a new type of controllability for a dispersive fifth order equation that models water waves, what we will now…

Analysis of PDEs · Mathematics 2021-08-09 Roberto de A. Capistrano Filho , Luan S. de Sousa

In this article we prove semiglobal stabilization and exact controllability results for nonlinear plate equations with hinged boundary conditions and analytic nonlinearity. These results hold when the damping or control is localized in a…

Analysis of PDEs · Mathematics 2025-11-24 Cristóbal Loyola