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Motivic Rhythms (1812.09946v2)
Published 24 Dec 2018 in math.NT
Abstract: In this article on mathematics and music, we explain how one can "listen to motives" as rhythmic interpreters. In the simplest instance which is the one we shall consider, the motive is simply the $H1$ of the reduction modulo a prime $p$ of an hyperelliptic curve (defined over $\mathbb Q$). The corresponding { time onsets} are given by the arguments of the complex eigenvalues of the Frobenius. We find a surprising relation between mathematical properties of the motives and the ideas on rhythms developed by the composer Olivier Messiaen.
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