Necessary and sufficient conditions for the regularity of an interval matrix
Mohammed Al Yousef, Mohamed B. M. Elgindi, M.A. El-gebility · International Journal of Computer Mathematics · 1999
Verifiable necessary and sufficient conditions for regularity of an interval matrix are given. Based on these conditions an algorithm for checking the regularity of interval matrices is developed. It is shown that this algorithm can be modified to determine the stability of a class of interval matrices.