We give sharp in p and w estimates of operator norms of Riesz transforms in the spaces, when the characteristic of the weight is close to 1 (flat case). This is done by proving the existence of a certain Bellman function.
Nous construisons une nouvelle fonction de Bellman qui nous permet de donner des estimations précises de la norme des transformées de Riesz dans les espaces pondérés , quand la caractéristique du poids est proche de 1.
Accepted:
Published online:
Nikolaos Pattakos 1; Alexander Volberg 1
@article{CRMATH_2011__349_21-22_1151_0, author = {Nikolaos Pattakos and Alexander Volberg}, title = {A new weighted {Bellman} function}, journal = {Comptes Rendus. Math\'ematique}, pages = {1151--1154}, publisher = {Elsevier}, volume = {349}, number = {21-22}, year = {2011}, doi = {10.1016/j.crma.2011.10.007}, language = {en}, }
Nikolaos Pattakos; Alexander Volberg. A new weighted Bellman function. Comptes Rendus. Mathématique, Volume 349 (2011) no. 21-22, pp. 1151-1154. doi : 10.1016/j.crma.2011.10.007. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2011.10.007/
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