publication . Article . Preprint . 2004
Open Access Catalan; Valencian
Laba, Izabella; Pramanik, Malabika;
Publisher: Universitat de Barcelona
Project: NSF | Topics in Harmonic Analys... (0245408), NSERC
We extend Wolff's "local smoothing" inequality to a wider class of not necessarily conical hypersurfaces of codimension 1. This class includes surfaces with nonvanishing curvature, as well as certain surfaces with more than one flat direction. An immediate consequence i...