Joint Spectral Radius, Dilation Equations, and Asymptotic Behavior of Radix-Rational Sequences

Abstract : Radix-rational sequences are solutions of systems of recurrence equations based on the radix representation of the index. For each radix-rational sequence with complex values we provide an asymptotic expansion, essentially in the scale N^α log^l N. The precision of the asymptotic expansion depends on the joint spectral radius of the linear representation of the sequence of first-order differences. The coefficients are Hölderian functions obtained through some dilation equations, which are usual in the domains of wavelets and refinement schemes. The proofs are ultimately based on elementary linear algebra.
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Philippe Dumas. Joint Spectral Radius, Dilation Equations, and Asymptotic Behavior of Radix-Rational Sequences. Linear Algebra and its Applications, Elsevier, 2013, 438 (5), pp.2107-2126. ⟨10.1016/j.laa.2012.10.013⟩. ⟨hal-00780568⟩

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