Sufficient Conditions for Hurwitz and Schur Stability of Interval Matrices

We investigate the Hurwitz and Schur stability of interval matrices using Lyapunov's Second Method and interval analysis techniques. Previous results require a check of the definiteness of 2
^n(n-1)/2
corners of a certain interval matrix. The present results require a check of the definiteness of only 2
^n-1
corners.