Quantitative Regularity Estimates for Compressible Transport Equations

Didier Bresch, Pierre Emmanuel Jabin

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations


These notes aim at presenting some recent estimates for transport equations with rough, i.e., non-smooth, velocity fields. Our final goal is to use those estimates to obtain new results on complex systems where the transport equation is coupled to other PDE’s: A driving example being the compressible Navier–Stokes system. But for simplicity, we work in the linear setting where the velocity field is given and only briefly sketch at the end of the notes how to use the new theory for nonlinear estimates. After reviewing some of the classical results, we focus on /quantitative/ estimates, in the absence of any bounds on the divergence of the velocity fields (or any corresponding bound on the Jacobian of the Lagrangian flow) for which a new approach is needed.

Original languageEnglish (US)
Title of host publicationNecas Center Series
Number of pages37
StatePublished - 2018

Publication series

NameNecas Center Series
VolumePart F1672
ISSN (Print)2523-3343
ISSN (Electronic)2523-3351

All Science Journal Classification (ASJC) codes

  • General Mathematics
  • Engineering (miscellaneous)
  • Computational Theory and Mathematics

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