On two results of Singhof
Commentationes Mathematicae Universitatis Carolinae, Tome 38 (1997) no. 2, pp. 379-383
Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
For a compact connected semisimple Lie group $G$ we shall prove two results (both related with Singhof's paper [13]) on the Lusternik-Schnirelmann category of the adjoint orbits of $G$, respectively the 1-dimensional relative category of a maximal torus $T$ in $G$. The techniques will be classical, but we shall also apply some basic results concerning the so-called $\mathcal A$-category (cf. [14]).
Classification :
55M30, 55P50, 57T15, 57T20
Keywords: Lusternik-Schnirelmann category; Lie groups; adjoint orbits
Keywords: Lusternik-Schnirelmann category; Lie groups; adjoint orbits
@article{CMUC_1997__38_2_a19,
author = {Mare, Augustin-Liviu},
title = {On two results of {Singhof}},
journal = {Commentationes Mathematicae Universitatis Carolinae},
pages = {379--383},
publisher = {mathdoc},
volume = {38},
number = {2},
year = {1997},
mrnumber = {1455506},
zbl = {0886.55009},
language = {en},
url = {http://geodesic.mathdoc.fr/item/CMUC_1997__38_2_a19/}
}
Mare, Augustin-Liviu. On two results of Singhof. Commentationes Mathematicae Universitatis Carolinae, Tome 38 (1997) no. 2, pp. 379-383. http://geodesic.mathdoc.fr/item/CMUC_1997__38_2_a19/