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SCAP-subalgebras of Lie algebras

Sara Chehrazi, Ali Reza Salemkar (2016)

Czechoslovak Mathematical Journal

A subalgebra H of a finite dimensional Lie algebra L is said to be a SCAP -subalgebra if there is a chief series 0 = L 0 L 1 ... L t = L of L such that for every i = 1 , 2 , ... , t , we have H + L i = H + L i - 1 or H L i = H L i - 1 . This is analogous to the concept of SCAP -subgroup, which has been studied by a number of authors. In this article, we investigate the connection between the structure of a Lie algebra and its SCAP -subalgebras and give some sufficient conditions for a Lie algebra to be solvable or supersolvable.

Solvable extensions of a special class of nilpotent Lie algebras

A. Shabanskaya, Gerard Thompson (2013)

Archivum Mathematicum

A pair of sequences of nilpotent Lie algebras denoted by N n , 11 and N n , 19 are introduced. Here n denotes the dimension of the algebras that are defined for n 6 ; the first term in the sequences are denoted by 6.11 and 6.19, respectively, in the standard list of six-dimensional Lie algebras. For each of N n , 11 and N n , 19 all possible solvable extensions are constructed so that N n , 11 and N n , 19 serve as the nilradical of the corresponding solvable algebras. The construction continues Winternitz’ and colleagues’ program of investigating...

Some properties of complex filiform Lie algebras.

F. J. Echarte Reula, J. R. Gómez Martín, J. Núñez Valdés (1992)

Extracta Mathematicae

The purpose of this paper is to study some properties of Filiform Lie Algebras (FLA) and to prove the following theorem: a FLA, of dimension n, is either derived from a Solvable Lie Algebra (SLA) of dimension n+1 or not derived from any LA.

Spectrum for a solvable Lie algebra of operators

Daniel Beltiţă (1999)

Studia Mathematica

A new concept of spectrum for a solvable Lie algebra of operators is introduced, extending the Taylor spectrum for commuting tuples. This spectrum has the projection property on any Lie subalgebra and, for algebras of compact operators, it may be computed by means of a variant of the classical Ringrose theorem.

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