Geodesic
On Geodesics of a Modified Riemannian Manifold
Canadian mathematical bulletin, Tome 3 (1960) no. 3, pp. 255-261

Voir la notice de l'article provenant de la source Cambridge University Press

In Riemannian geometry the autoparallels associated with the affine connexion coincide with the geodesies which arise from the metric. This is not the case in a modification of Riemannian geometry suggested by Lyra. A sufficient condition that the two classes of curves coincide is obtained. 
On Geodesics of a Modified Riemannian Manifold. Canadian mathematical bulletin, Tome 3 (1960) no. 3, pp. 255-261. doi: 10.4153/CMB-1960-032-0
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