8 citations · 12 across the 3 of their papers we have counts for
3 papers
math.DS2012
Common zeros of inward vector fields on surfaces
Morris W. Hirsch
A vector field X on a manifold M with possibly nonempty boundary is inward if it generates a unique local semiflow . A compact relatively open set K in the zero set of X is a…
math.DS2012★ 4 cited
Chain transitive sets for smooth strongly monotone dynamical systems
Morris W. Hirsch
Let K denote a compact invariant set for a strongly monotone semiflow in an ordered Banach space E, satisfying standard smoothness and compactness assumptions. Suppose the semiflow…
math.GR2012★ 8 cited
Smooth actions of Lie groups and Lie algebras on manifolds
Morris W. Hirsch
Necessary or sufficient conditions are presented for the existence of various types of actions of Lie groups and Lie algebras on manifolds.