Stationary solutions and nonuniqueness of weak solutions for the Navier–Stokes equations in high dimensions

X Luo - Archive for Rational Mechanics and Analysis, 2019 - Springer
Consider the unforced incompressible homogeneous Navier–Stokes equations on the d-
torus T^ d T d where d ≧ 4 d≥ 4 is the space dimension. It is shown that there exist …

Sharp non-uniqueness for the 3D hyperdissipative Navier-Stokes equations: Beyond the Lions exponent

Y Li, P Qu, Z Zeng, D Zhang - Journal de Mathématiques Pures et …, 2024 - Elsevier
We study the 3D hyperdissipative Navier-Stokes equations on the torus, where the viscosity
exponent α can be larger than the Lions exponent 5/4. It is well-known that, due to Lions [1] …

[HTML][HTML] Norm inflation for a non-linear heat equation with Gaussian initial conditions

I Chevyrev - Stochastics and Partial Differential Equations: Analysis …, 2024 - Springer
We consider a non-linear heat equation∂ tu= Δ u+ B (u, D u)+ P (u) posed on the d-
dimensional torus, where P is a polynomial of degree at most 3 and B is a bilinear map that …

Norm inflation for the cubic nonlinear heat equation above the scaling critical regularity

I Chevyrev, T Oh, Y Wang - arXiv preprint arXiv:2205.14488, 2022 - arxiv.org
We consider the ill-posedness issue for the cubic nonlinear heat equation and prove norm
inflation with infinite loss of regularity in the H\" older-Besov space $\mathcal C^ s= B^{s} …

[PDF][PDF] Stationary and discontinuous weak solutions of the Navier-Stokes equations

A Cheskidov, X Luo - arXiv preprint arXiv:1901.07485, 2019 - homepages.math.uic.edu
We prove that there exists a nontrivial finite energy periodic stationary weak solution to the
3D Navier-Stokes equations (NSE). The construction relies on a convex integration scheme …

[HTML][HTML] Norm-inflation results for the BBM equation

J Bona, M Dai - Journal of Mathematical Analysis and Applications, 2017 - Elsevier
Considered here is the periodic initial-value problem for the regularized long-wave (BBM)
equation u t+ u x+ uux− uxxt= 0. Adding to previous work in the literature, it is shown here …

Dyadic models for fluid equations: a survey

A Cheskidov, M Dai, S Friedlander - Journal of Mathematical Fluid …, 2023 - Springer
Over the centuries mathematicians have been challenged by the partial differential
equations (PDEs) that describe the motion of fluids in many physical contexts. Important and …

Norm inflation for the Boussinesq system

Z Li, W Wang - arXiv preprint arXiv:1912.06114, 2019 - arxiv.org
We prove the norm inflation phenomena for the Boussinesq system on $\mathbb T^ 3$. For
arbitrarily small initial data $(u_0,\rho_0) $ in the negative-order Besov spaces $\dot {B}^{-1} …

[HTML][HTML] Well/ill-posedness for the dissipative Navier–Stokes system in generalized Carleson measure spaces

Y Wang, J Xiao - Advances in Nonlinear Analysis, 2017 - degruyter.com
As an essential extension of the well known case β∈(1 2, 1] to the hyper-dissipative case
β∈(1,∞), this paper establishes both well-posedness and ill-posedness (not only norm …

[PDF][PDF] Well-posedness and ill-posedness for the 3D generalized Navier-Stokes equations in f-, r

C Deng, X Yao - Dynamical Systems, 2014 - researchgate.net
WELL-POSEDNESS AND ILL-POSEDNESS FOR THE 3D GENERALIZED NAVIER-STOKES
EQUATIONS IN F Chao Deng Xiaohua Yao (Communicated by Co Page 1 DISCRETE AND …