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Periodic orbits in magnetic fields and Ricci curvature of Lagrangian systems

Author(s): Abbas Bahri; Iskander A. Taimanov
Journal: Trans. Amer. Math. Soc. 350 (1998), 2697-2717.
MSC (1991): Primary 58E05, 58E30, 49N66
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Abstract: A Lagrangian system describing a motion of a charged particle on a Riemannian manifold is studied. For this flow an analog of a Ricci curvature is introduced, and for Ricci positively curved flows the existence of periodic orbits is proved.

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Additional Information:

Abbas Bahri
Affiliation: Department of Mathematics, Rutgers University, New Brunswick, New Jersey 08903

Iskander A. Taimanov
Affiliation: Institute of Mathematics, 630090 Novosibirsk, Russia
Email: taimanov@math.nsc.ru

DOI: 10.1090/S0002-9947-98-02108-4
PII: S 0002-9947(98)02108-4
Received by editor(s): December 28, 1995
Copyright of article: Copyright 1998, American Mathematical Society

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