Solvable Lie Algebra - Completely Solvable Lie Algebras

Completely Solvable Lie Algebras

A Lie algebra g is called completely solvable if it has a finite chain of ideals from 0 to g such that each has codimension 1 in the next. A finite-dimensional nilpotent Lie algebra is completely solvable, and a completely solvable Lie algebra is solvable. Over an algebraically closed field and solvable Lie algebra is completely solvable, but the 3-dimensional real Lie algebra of the group of Euclidean isometries of the plane is solvable but not completely solvable.

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