Greenfield, Stephen J.; Wallach, Nolan R. Globally hypoelliptic vector fields. (English) Zbl 0268.58007 Topology 12, 247-253 (1973). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 22 Documents MSC: 58A99 General theory of differentiable manifolds 37J99 Dynamical aspects of finite-dimensional Hamiltonian and Lagrangian systems 28D05 Measure-preserving transformations PDFBibTeX XMLCite \textit{S. J. Greenfield} and \textit{N. R. Wallach}, Topology 12, 247--253 (1973; Zbl 0268.58007) Full Text: DOI