| Orateur(s)|| Tuomas Hytönen - Univ. of Helsinki,
| Titre ||Of commutators and Jacobians|
| Horaire||10:30 à 13:30|
| Résume||he L^p boundedness of commutators [b,T] = bT-Tb of pointwise multiplication b and singular integral operators T has been well studied for a long time. There are also many results about L^p to L^q boundedness for p|
q. I will supply the missing pieces to present a complete picture of the L^p to L^q boundedness for all finite p,q>1, and relate the regime of exponents p>q to the mapping properties of the Jacobian on first order Sobolev spaces.
| Salle||salle 13 - couloir 15-16 - 4ème étage|
|Adresse||Campus Pierre et Marie Curie|