We show that some riemannian manifolds diffeomorphic to the sphere have the
property that the cut loci of general points are smoothly embedded closed disks of codimension one.
Ellipsoids with distinct axes are typical examples of such manifolds.
@article{1294789789,
author = {Itoh, Jin-ichi and Kiyohara, Kazuyoshi},
title = {The Cut Loci on Ellipsoids and Certain Liouville Manifolds},
journal = {Asian J. Math.},
volume = {14},
number = {1},
year = {2010},
pages = { 257-290},
language = {en},
url = {http://dml.mathdoc.fr/item/1294789789}
}
Itoh, Jin-ichi; Kiyohara, Kazuyoshi. The Cut Loci on Ellipsoids and Certain Liouville Manifolds. Asian J. Math., Tome 14 (2010) no. 1, pp. 257-290. http://gdmltest.u-ga.fr/item/1294789789/