Free quasi-symmetric functions, product actions and quantum field theory of partitions

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We examine two associative products over the ring of symmetric functions related to the intransitive and Cartesian products of permutation groups. As an application, we give an enumeration of some Feynman type diagrams arising in Bender's QFT of partitions. We end by exploring possibilities to construct noncommutative analogues.
Submitted 28.11.04

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Symbolic Computation, Combinatorics, Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/32510

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cs/0412061
 http://arxiv.org/abs/cs/0412061

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arXiv