On the Greenfield-Wallach and Katok conjectures

zbMath1156.37003arXiv0706.3981MaRDI QIDQ3545305

Giovanni Forni

Publication date: 10 December 2008

Full work available at URL: https://arxiv.org/abs/0706.3981

zbMATH Keywords

cohomologyfloworientable manifoldDiophantine vector fields on torifree vector fieldsglobally hypoelliptic vector field

Mathematics Subject Classification ID

Topological and differentiable equivalence, conjugacy, moduli, classification of dynamical systems (37C15) Dynamics induced by flows and semiflows (37C10) Hypoelliptic equations (35H10)

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