Closed geodesics on Riemann surfaces
Author: Troels Jørgensen
Journal: Proc. Amer. Math. Soc. 72 (1978), 140-142
MSC: Primary 53A35; Secondary 30Fxx
MathSciNet review: 503548
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Abstract: This note deals with an elementary property of closed geodesics on surfaces with a complete metric of constant negative curvature.