Zusammenfassung

Let A be a nonnegative $n n$ matrix. In this paper we study the growth of the powers $A^m, m = 1,2,3, $ when $( A ) = 1$. These powers occur naturally in the iteration process \x^( m + 1 ) = Ax^( m ) ,x^( 0 ) 0,\ which is important in applications and numerical techniques. Roughly speaking, we analyze the asymptotic behavior of each entry of $A^m $. We apply our main result to determine necessary and sufficient conditions for the convergence to the spectral radius of A of certain ratios naturally associated with the iteration above.

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