1 citations · 1 across the 1 of their papers we have counts for
2 papers
math.RA2019
Closed subsets of root systems and regular subalgebras
Andrew Douglas, Willem A. de Graaf
We describe an algorithm for classifying the closed subsets of a root system, up to conjugation by the associated Weyl group. Such a classification of an irreducible root system is…
math.RT2015★ 1 cited
The subalgebras of
Andrew Douglas, Joe Repka
We classify the solvable subalgebras, semisimple subalgebras, and Levi decomposable subalgebras of , up to inner automorphism. By Levi's Theorem, this…