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Bibliographic Details
Main Authors: Ferra, Igor Ambo, Santos, Luís Antônio Carvalho dos
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2405.02450
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Table of Contents:
  • We characterize the global hypoellipticity, almost hypoellipticity and solvability for a class of systems of real vector fields on the (n + 1)-dimensional torus as well as the same properties about the sum of squares associated to the system. The key result is a theorem about propagation of regularity for solutions of the system.