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Irreducible representations of the Chinese monoid

Representation Theory 2016-01-05 v1 Rings and Algebras

Abstract

All irreducible representations of the Chinese monoid CnC_n, of any rank nn, over a nondenumerable algebraically closed field KK, are constructed. It turns out that they have a remarkably simple form and they can be built inductively from irreducible representations of the monoid C2C_2. The proof shows also that every such representation is monomial. Since CnC_n embeds into the algebra K[Cn]/J(K[Cn])K[C_n]/J(K[C_n]), where J(K[Cn])J(K[C_n]) denotes the Jacobson radical of the mooned algebra K[Cn]K[C_n], a new representation of CnC_n as a subdirect product of the images of CnC_n in the endomorphism algebras of the constructed simple modules follows.

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Cite

@article{arxiv.1601.00580,
  title  = {Irreducible representations of the Chinese monoid},
  author = {Łukasz Kubat and Jan Okniński},
  journal= {arXiv preprint arXiv:1601.00580},
  year   = {2016}
}

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20 pages