We prove a minimal Gevrey regularity theorem for Hormander's sum of squares type operators (), improving the result of Derridj and Zuily []. The Gevrey index given here is optimal, in the sense that there are operators of this type that just attain that regularity and not any better.
Minimal Gevrey Regularity for Hörmander Operators / Bove, Antonio; Mughetti, Marco. - In: INTERNATIONAL MATHEMATICS RESEARCH NOTICES. - ISSN 1073-7928. - STAMPA. - 2024:4(2024), pp. 2790-2832. [10.1093/imrn/rnad055]
Minimal Gevrey Regularity for Hörmander Operators
Bove, Antonio;Mughetti, Marco
2024
Abstract
We prove a minimal Gevrey regularity theorem for Hormander's sum of squares type operators (), improving the result of Derridj and Zuily []. The Gevrey index given here is optimal, in the sense that there are operators of this type that just attain that regularity and not any better.File in questo prodotto:
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