STABILITY OF INTERVAL PARAMETER MATRICES

Ⅰ. INTRODUCTION The stability of interval matrices has recently been studied and many results have been obtained. Consider n×n-dimensional real matrices P=(Pij) and Q=(qij), satisfying Pij≤qij and define N[P, Q]={A=(aij)∈Rn×n|pij≤αij≤qij, i, j=1, 2…, n,}. The interval matrix N[P, Q] is said to be stable if A