Panyushev, Dmitri I. Max Planck Institute for Mathematics, Max Planck Society;
https://doi.org/10.4171/JEMS/496 (Publisher version)
Panyushev_Abelian ideals of a Borel subalgebra and root systems_2014.pdf (Publisher version), 195KB
Panyushev, D. I. (2014). Abelian ideals of a Borel subalgebra and root systems. Journal of the European Mathematical Society, 16(12), 2693-2708. doi:10.4171/JEMS/496.