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math.RA2022
Seaweed algebras
Alex Cameron, Vincent E. Coll, Nicholas Mayers +1
The index of a Lie algebra is an important algebraic invariant, but it is notoriously difficult to compute. However, for the suggestively-named seaweed algebras, the computation of…
math.RA2019
Combinatorial index formulas for Lie algebras of seaweed type
Alex Cameron, Vincent E. Coll, Matthew Hyatt
Analogous to the types A, B, and C cases, we address the computation of the index of seaweed subalgebras in the type-D case. Formulas for the algebra's index can be computed by cou…