We extend to semi-abelian categories the notion of characteristic subobject, which is widely used in group theory and in the theory of Lie algebras. Moreover, we show that many of the classical properties of characteristic subgroups of a group hold in the general semi-abelian context, or in stronger ones.

Characteristic subobjects in semi-abelian categories / A.S. Cigoli, A. Montoli. - In: THEORY AND APPLICATIONS OF CATEGORIES. - ISSN 1201-561X. - 30(2015 Feb 10), pp. 206-228.

Characteristic subobjects in semi-abelian categories

A.S. Cigoli
Primo
;
A. Montoli
2015

Abstract

We extend to semi-abelian categories the notion of characteristic subobject, which is widely used in group theory and in the theory of Lie algebras. Moreover, we show that many of the classical properties of characteristic subgroups of a group hold in the general semi-abelian context, or in stronger ones.
characteristic subobject; semi-abelian categories; commutators; centralisers
Settore MAT/02 - Algebra
10-feb-2015
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/265450
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