A Morse index theorem for null geodesics

DOI10.1215/S0012-7094-79-04629-5zbMath0418.58008MaRDI QIDQ1131771

Paul E. Ehrlich, John K. Beem

Publication date: 1979

Published in: Duke Mathematical Journal (Search for Journal in Brave)

zbMATH Keywords

null geodesicsindex theorem

Mathematics Subject Classification ID

Abstract critical point theory (Morse theory, Lyusternik-Shnirel'man theory, etc.) in infinite-dimensional spaces (58E05) Global differential geometry of Lorentz manifolds, manifolds with indefinite metrics (53C50)

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