%0 Journal Article 
%A Marijuán, Carlos
%A Ojeda, Ignacio
%A Vigneron Tenorio, Alberto
%T A Note on Decomposable and Reducible Integer Matrices
%D 2021
%@ 2073-8994
%U http://hdl.handle.net/10498/25643
%X We propose necessary and sufficient conditions for an integer matrix to be decomposable in
terms of its Hermite normal form. Specifically, to each integer matrix, we associate a symmetric integer
matrix whose reducibility can be efficiently determined by elementary linear algebra techniques, and
which completely determines the decomposability of the first one.
%K integer matrix
%K hermite normal form
%K decomposable matrix
%K reducible matrix
%K disconnected graph
%~ Universidad de Cádiz