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Periodic Orbits for Generalized Gradient Flows
Published online by Cambridge University Press: 20 November 2018
Abstract
Let Mn be an n-dimensional compact oriented connected Riemannean manifold. It is proved that either of the following conditions is sufficient to insure that the flow defined by a generalized gradient vector field in Mn has either a stationary point or a periodic orbit:
a)Mn is the product of a circle with an (n — 1 ) dimensional manifold of non-zero Euler characteristic.
b)The (n — 1) dimensional Stiefel-Whitney class of Mn is different from zero and in addition Mn possesses no one-dimensional 2-torsion.
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- Copyright © Canadian Mathematical Society 1995