On Factorisations of Matrices and Abelian Groups

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We establish correspondances between factorisations of finite abelian groups (direct factors, unitary factors, non isomorphic subgroup classes) and factorisations of integer matrices. We then study counting functions associated to these factorisations and find average orders.
18 pages, v2: Clarified definition 4. Changed "without zeroes" to "without real zeroes" at five places

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Number Theory, Combinatorics, 11M41; 20K01; 15A36

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http://salesiana.dossiersoluciones.com/handle/123456789/112942

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0605727
 http://arxiv.org/abs/math/0605727

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arXiv