Geodesic
ABELIAN IDEALS IN A COMPLEX SIMPLE LIE ALGEBRA
Glasgow mathematical journal, Tome 59 (2017) no. 1, pp. 255-264

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

In this note, we give a new simple construction of all maximal abelian ideals in a Borel subalgebra of a complex simple Lie algebra. We also derive formulas for dimensions of certain maximal abelian ideals in terms of the theory of Borel de Siebenthal. 
BROWNE, PATRICK J. ABELIAN IDEALS IN A COMPLEX SIMPLE LIE ALGEBRA. Glasgow mathematical journal, Tome 59 (2017) no. 1, pp. 255-264. doi: 10.1017/S0017089516000148
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