Geodesic
Upper bounds on the length of a shortest closed geodesic and quantitative Hurewicz theorem
Journal of the European Mathematical Society, Tome 5 (2003) no. 3, pp. 203-244.

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In this paper we present two upper bounds on the length of a shortest closed geodesic on compact Riemannian manifolds. The first upper bound depends on an upper bound on sectional curvature and an upper bound on the volume of the manifold. The second upper bound will be given in terms of a lower bound on sectional curvature, an upper bound on the diameter and a lower bound on the volume. The related questions that will also be studied are the following: given a contractible k-dimensional sphere in Mn, how fast can this sphere be contracted to a point, if pgri(Mn)={0} for 1lei
DOI : 10.1007/s10097-003-0051-7
Classification : 53-XX, 00-XX
Keywords: 
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     title = {Upper bounds on the length of a shortest closed geodesic and quantitative {Hurewicz} theorem},
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Alexander Nabutovsky; Regina Rotman. Upper bounds on the length of a shortest closed geodesic and quantitative Hurewicz theorem. Journal of the European Mathematical Society, Tome 5 (2003) no. 3, pp. 203-244. doi : 10.1007/s10097-003-0051-7. http://geodesic.mathdoc.fr/articles/10.1007/s10097-003-0051-7/

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