Global Regularity of Band-Limited Navier–Stokes Equations
Abstract
This short technical note proves global regularity for a spectrally truncated (band-limited) version of the three-dimensional incompressible Navier–Stokes equations. The result is elementary and relies on standard energy estimates and the Bernstein inequality. The purpose of the note is pedagogical: to clarify why access to arbitrarily high frequencies is essential for potential singularity formation in the full Navier–Stokes equations.
Fields of Study & Subjects
Navier-Stokes equation solutions
Advanced Mathematical Physics Problems
Fluid Dynamics and Turbulent Flows
Publication details
- Journal / source
- Zenodo (CERN European Organization for Nuclear Research)
- Publication date
- 16 January 2026
- Language
- EN
- Document type
- Preprint