English

Multilinear paraproducts on Sobolev spaces

Classical Analysis and ODEs 2024-06-21 v1 Analysis of PDEs Functional Analysis

Abstract

Paraproducts are a special subclass of the multilinear Calder\'on-Zygmund operators, and their Lebesgue space estimates in the full multilinear range are characterized by the BMO\mathrm{BMO} norm of the symbol. In this note, we characterize the Sobolev space boundedness properties of multilinear paraproducts in terms of a suitable family of Triebel-Lizorkin type norms of the symbol. Coupled with a suitable wavelet representation theorem, this characterization leads to a new family of Sobolev space T(1)T(1)-type theorems for multilinear Calder\'on-Zygmund operators.

Keywords

Cite

@article{arxiv.2406.13174,
  title  = {Multilinear paraproducts on Sobolev spaces},
  author = {Francesco Di Plinio and A. Walton Green and Brett D. Wick},
  journal= {arXiv preprint arXiv:2406.13174},
  year   = {2024}
}
R2 v1 2026-06-28T17:11:26.523Z