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Creators/Authors contains: "ARMENTANO, DIEGO"

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  1. ; ; ; (, Ergodic Theory and Dynamical Systems)
    Abstract We consider orthogonally invariant probability measures on$$\operatorname {\mathrm {GL}}_n(\mathbb {R})$$and compare the mean of the logs of the moduli of eigenvalues of the matrices with the Lyapunov exponents of random matrix products independently drawn with respect to the measure. We give a lower bound for the former in terms of the latter. The results are motivated by Dedieu and Shub [On random and mean exponents for unitarily invariant probability measures on$$\operatorname {\mathrm {GL}}_n(\mathbb {C})$$.Astérisque287(2003), xvii, 1–18]. A novel feature of our treatment is the use of the theory of spherical polynomials in the proof of our main result. 
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