Morse theory on timelike and causal curves

Details Morse theory on timelike and causal curves Morse theory on timelike and causal curves

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976gregr...7..609e&link_type=abstract

General Relativity and Gravitation, Volume 7, Issue 7, pp.609-621

Mathematics

Logic

2

Scientific paper

It is shown that the set of timelike curves in a globally hyperbolic space-time manifold can be given the structure of a Hubert manifold under a suitable definition of “timelike.” The causal curves are the topological closure of this manifold. The Lorentzian energy (corresponding to Milnor's energy, except that the Lorentzian inner product is used) is shown to be a Morse function for the space of causal curves. A fixed end point index theorem is obtained in which a lower bound for the index of the Hessian of the Lorentzian energy is given in terms of the sum of the orders of the conjugate points between the end points.

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