@Article{JCM-2-189,
author = {Ji-Guang Sun},
title = {Estimation of the Separation of Two Matrices},
journal = {Journal of Computational Mathematics},
year = {1984},
volume = {2},
number = {3},
pages = {189--200},
abstract = { The estimation of the solution to the matrix equation AX-XB=C is primarily dependent on the quantity sep(A,B) introduced by Stewart. Varah has given some examples to show that $sep_F(A,B)$ can be very small even though the eigenvalues of A and B are well separated. In this paper we give some lower bounds of $sep_F(A,B)$. },
issn = {1991-7139},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/jcm/9653.html}
}