English

Sobolev algebra through a "carr\'e du champ" identity

Classical Analysis and ODEs 2016-12-02 v1

Abstract

We consider abstract Sobolev spaces of Bessel-type associated with an operator. In this work, we pursue the study of algebra properties of such functional spaces through the corresponding semigroup. As a follow-up of [4], we show that under the extra property of a "carr\'e du champ identity" , this algebra property holds in a wider range than previously shown.

Keywords

Cite

@article{arxiv.1612.00280,
  title  = {Sobolev algebra through a "carr\'e du champ" identity},
  author = {Frederic Bernicot and Dorothee Frey},
  journal= {arXiv preprint arXiv:1612.00280},
  year   = {2016}
}

Comments

13 pages

R2 v1 2026-06-22T17:10:41.616Z