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math.DG2008
Comparison results for conjugate and focal points in semi-Riemannian geometry via Maslov index
Miguel Angel Javaloyes, Paolo Piccione
We prove an estimate on the difference of Maslov indices relative to the choice of two distinct reference Lagrangians of a continuous path in the Lagrangian Grassmannian of a sympl…
math.DG2008★ 4 cited
-periodic light rays in conformally stationary spacetimes via Finsler geometry
Leonardo Biliotti, Miguel Angel Javaloyes
In this paper we prove several multiplicity results of -periodic light rays in conformally stationary spacetimes using the Fermat metric and the extensions of the classical theo…