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We study generalized variants of the Burgers equation and the KdV equation on the circle. The main goal of the paper is to show that both extensions can be recast as geodesic equations on a suitable diffeomorphism group of the circle and…

Analysis of PDEs · Mathematics 2012-04-12 Martin Kohlmann

The time-global existence of unique smooth positive solutions to the reaction diffusion equations of the Keener-Tyson model for the Belousov-Zhabotinsky reaction in the whole space is established with bounded non-negative initial data.…

Analysis of PDEs · Mathematics 2019-05-20 S. Kondo , Novrianti , O. Sawada , N. Tsuge

We show the global-in-time well-posedness of the complex Ginzburg-Landau (CGL) equation with a space-time white noise on the 3-dimensional torus. Our method is based on [14], where Mourrat and Weber showed the global well-posedness for the…

Probability · Mathematics 2017-04-17 Masato Hoshino

In this paper, we consider the global solutions to a generalized 2D Boussinesq equation \begin{align*} \left \{\begin{aligned} & \partial_{t} \omega + u\cdot \nabla \omega + \nu \Lambda^{\alpha} \omega = \theta_{x_{1}} , \quad \\ & u =…

Analysis of PDEs · Mathematics 2014-11-03 Junxiong Jia , Jigen Peng , Kexue Li

In this paper, we establish the uniquely existence of the global mild solution to the nematic liquid crystal equations in Besov-Morrey spaces. Some self-similarity and large time behavior of the global mild solution are also investigated.

Analysis of PDEs · Mathematics 2019-06-18 Guoquan Qin

In this note we study the well-posedness of two systems of Burgers type arising in nonlinear wave interactions. The first model describes the interaction of a Burger's bore with the classical Korteweg-de Vries equation while the second…

Analysis of PDEs · Mathematics 2024-10-18 Diego Alonso-Orán , Rafael Granero-Belinchón

Admissible point transformations between Burgers equations with linear damping and time-dependent coefficients are described and used in order to exhaustively classify Lie symmetries of these equations. Optimal systems of one- and…

Exactly Solvable and Integrable Systems · Physics 2014-06-24 Oleksandr A. Pocheketa , Roman O. Popovych , Olena O. Vaneeva

In this work, high order splitting methods have been used for calculating the numerical solutions of the Burgers' equation in one space dimension with periodic and Dirichlet boundary conditions. However, splitting methods with real…

Numerical Analysis · Mathematics 2014-10-17 Muaz Seydaoğlu , Utku Erdoğan , Turgut Öziş

In this paper, the hyperbolic tangent function method is applied for constructing exact solutions for space-time conformal fractional Burgers equation. Furthermore, the space-time conformal fractional Burgers equation is tested for the…

Exactly Solvable and Integrable Systems · Physics 2020-09-08 Abaker A. Hassaballa , Ahmed M. A. Adam , Eltayeb A. Yousif , Mohamed I. Nouh

This paper is concerned with the study of a non-local Burgers equation for positive bounded periodic initial data. The equation reads $$ u_t - u |\nabla| u + |\nabla|(u^2) = 0. $$ We construct global classical solutions starting from smooth…

Analysis of PDEs · Mathematics 2015-06-09 Cyril Imbert , Roman Shvydkoy , Francois Vigneron

Exactly solvable variable parametric Burgers type equations in one-dimension are introduced, and two different approaches for solving the corresponding initial value problems are given. The first one is using the relationship between the…

Exactly Solvable and Integrable Systems · Physics 2011-04-27 Sirin A. Buyukasik

The (2+1)-dimensional Burgers equation has been investigated first from prospective of symmetry by localizing the nonlocal residual symmetries and then studied by a simple generalized tanh expansion method. New symmetry reduction solutions…

Exactly Solvable and Integrable Systems · Physics 2013-10-02 Xi-zhong Liu , Jun Yu , Bo Ren

The inviscid Burgers equation with random and spatially smooth forcing is considered in the limit when the size of the system tends to infinity. For the one-dimensional problem, it is shown both theoretically and numerically that many of…

Chaotic Dynamics · Physics 2007-05-23 J. Bec , K. Khanin

We consider the one-dimensional Burgers equation perturbed by a stochastic forcing, which is assumed to be white in time and localised and low-dimensional in space. We establish a mixing property for the Markov process associated with the…

Analysis of PDEs · Mathematics 2016-06-27 Armen Shirikyan

Burgers equation is one of the simplest nonlinear partial differential equations-it combines the basic processes of diffusion and nonlinear steepening. In some applications it is appropriate for the diffusion coefficient to be a…

Mathematical Physics · Physics 2007-05-23 Zhenquan Li , A. J. Roberts

In this paper, we investigate existence of global-in-time strong solutions to the kinetic Cucker--Smale model coupled with the Stokes equations in the whole space. By introducing a weighted Sobolev space and using space-time estimates for…

Analysis of PDEs · Mathematics 2024-06-19 Chunyin Jin

We address the global-in-time existence and pathwise uniqueness of solutions for the stochastic incompressible Navier-Stokes equations with a multiplicative noise on the three-dimensional torus. Under natural smallness conditions on the…

Probability · Mathematics 2024-10-07 Igor Kukavica , Fanhui Xu

We prove that the Benjamin--Ono equation on the torus is globally in time well-posed in the Sobolev space $H^{s}(\mathbb{T},\mathbb{R})$ for any $s > - 1/2$ and ill-posed for $s \le - 1/2$. Hence the critical Sobolev exponent $s_c=-1/2$ of…

Analysis of PDEs · Mathematics 2020-04-13 P. Gérard , T. Kappeler , P. Topalov

A Lax pair consisting of the Forsyth-Hopf-Cole transformation and a linear differential (in time) - difference (in continuous space) equation generates the whole hierarchy of the Burgers equation and admits exact moving front solutions.…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 Alex Veksler , Yair Zarmi

The paper is a comprehensive study of the existence, uniqueness, blow up and regularity properties of solutions of the Burgers equation with fractional dissipation. We prove existence of the finite time blow up for the power of Laplacian…

Analysis of PDEs · Mathematics 2008-04-23 Alexander Kiselev , Fedor Nazarov , Roman Shterenberg