Almost invariant submanifolds for compact group actions
Journal of the European Mathematical Society, Tome 2 (2000) no. 1, pp. 53-86
Cet article a éte moissonné depuis la source EMS Press
Abstract. We define a C1 distance between submanifolds of a riemannian manifold M and show that, if a compact submanifold N is not moved too much under the isometric action of a compact group G, there is a G-invariant submanifold C1-close to N. The proof involves a procedure of averaging nearby submanifolds of riemannian manifolds in a symmetric way. The procedure combines averaging techniques of Cartan, Grove/Karcher, and de la Harpe/Karoubi with Whitney's idea of realizing submanifolds as zeros of sections of extended normal bundles.
@article{JEMS_2000_2_1_a1,
author = {Alan Weinstein},
title = {Almost invariant submanifolds for compact group actions},
journal = {Journal of the European Mathematical Society},
pages = {53--86},
year = {2000},
volume = {2},
number = {1},
doi = {10.1007/s100970050014},
url = {http://geodesic.mathdoc.fr/articles/10.1007/s100970050014/}
}
Alan Weinstein. Almost invariant submanifolds for compact group actions. Journal of the European Mathematical Society, Tome 2 (2000) no. 1, pp. 53-86. doi: 10.1007/s100970050014
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