An algorithm to compute abelian subalgebras in linear algebras of upper-triangular matrices

This paper deals with the maximal abelian dimension of the Lie algebra hn, of nxn upper-triangular matrices. Regarding this, we obtain an algorithm which computes abelian subalgebras of hn as well as its implementation (and a computational study) by using the symbolic computation package MAPLE, wher...

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Bibliographic Details
Authors: Ceballos González, Manuel, Núñez Valdés, Juan, Tenorio Villalón, Ángel Francisco
Format: article
Status:Published version
Publication Date:2009
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/43345
Online Access:http://hdl.handle.net/11441/43345
https://doi.org/10.1063/1.3225370
Access Level:Open access
Keyword:Maximal abelian dimension
Solvable Lie algebra
Algorithmic procedure
programming
Description
Summary:This paper deals with the maximal abelian dimension of the Lie algebra hn, of nxn upper-triangular matrices. Regarding this, we obtain an algorithm which computes abelian subalgebras of hn as well as its implementation (and a computational study) by using the symbolic computation package MAPLE, where the order n of the matrices in hn is the unique input needed. Let us note that the algorithm also allows us to obtain a maximal abelian subalgebra of hn.