2 papers
math.CV2023
A comparison principle between certain Levi-flat compact CR manifolds and systems of real vector fields
Paulo D. Cordaro, Vinícius Novelli
We study, in some models of Levi flat CR manifolds, the correspondence between the tangential Cauchy-Riemann complex and the complex defined by the associated real foliation.
math.AP2023
The Metivier inequality and ultradifferentiable hypoellipticity
Paulo D. Cordaro, Stefan Fürdös
In 1980 M{é}tivier characterized the analytic (and Gevrey) hypoellipticity of -solvable partial linear differential operators by a-priori estimates. In this note we extend thi…