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math.RT2024
Cyclic wide subalgebras of semisimple Lie algebras
Andrew Douglas, Joe Repka
Let be a Levi decomposable Lie algebra, with Levi factor , and radical . A module of $\ltimes…
math.RT2024
Narrow, wide, and -wide regular subalgebras of semisimple Lie algebras
Andrew Douglas, Joe Repka
A subalgebra of a semisimple Lie algebra is wide if every simple module of the semisimple Lie algebra remains indecomposable when restricted to the subalgebra. From a finer viewpoi…
math.RT2024
Regular extreme semisimple Lie algebras
Andrew Douglas, Joe Repka
A subalgebra of a semisimple Lie algebra is wide if every simple module of the semisimple Lie algebra remains indecomposable when restricted to the subalgebra. A subalgebra is narr…