Geodesic
On Conjugate and Focal Points in Semi-Riemannian Geometry.
Mathematische Zeitschrift, Tome 198 (1988) no. 3, pp. 569-590

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Mots-clés : focal points, semi-Riemannian manifolds, Raychaudhuri equation, conjugate point, Myer's theorem, geodesic, comparison theorems 
@article{MZ_1988__198_3_173944,
     author = {Demir N. Kupeli},
     title = {On {Conjugate} and {Focal} {Points} in {Semi-Riemannian} {Geometry.}},
     journal = {Mathematische Zeitschrift},
     pages = {569--590},
     publisher = {mathdoc},
     volume = {198},
     number = {3},
     year = {1988},
     zbl = {0658.53059},
     url = {http://geodesic.mathdoc.fr/item/MZ_1988__198_3_173944/}
}
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Demir N. Kupeli. On Conjugate and Focal Points in Semi-Riemannian Geometry.. Mathematische Zeitschrift, Tome 198 (1988) no. 3, pp. 569-590. http://geodesic.mathdoc.fr/item/MZ_1988__198_3_173944/