@Article{JICS-5-233,
author = {Jingyue Zhang, T. Z. Huang, Zhongshan Li and Xingwen Zhu},
title = {Sign Idempotent Matrices and Generalized Inverses},
journal = {Journal of Information and Computing Science},
year = {2024},
volume = {5},
number = {3},
pages = {233--240},
abstract = {Q A  denote 
A matrix whose entries consist of 
nn   matrices  B  such that the signs of entries in  B  match the corresponding entries in 
the set of all  real 
A . For nonnegative sign patterns, sign idempotent patterns have been characterized. In this paper, we Firstly 
give an equi-valent proposition to characterize general sign idempotent matrices (sign idempotent). Next, we 
study properties of a class of matrices which can be generalized permutationally similar to specialized sign 
patterns. Finally, we consider the relationships among the allowance of idempotent, generalized inverses and 
the allowance of tripotent in symmetric sign idempotent patterns. 
},
issn = {1746-7659},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/jics/22714.html}
}