Article: On Hopf algebras with positive bases

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TitleOn Hopf algebras with positive bases
AuthorsLu, JH
Yan, M1
Zhu, Y1
Issue Date2001
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/jalgebra
CitationJournal Of Algebra, 2001, v. 237 n. 2, p. 421-445 [How to Cite?]
DOI: http://dx.doi.org/10.1006/jabr.2000.8459
AbstractWe show that if a finite dimensional Hopf algebra H over C has a basis with respect to which all the structure constants are nonnegative, then H is isomorphic to the bi-cross-product Hopf algebra constructed by Takeuchi and Majid from a finite group G and a unique factorization G=G +G - of G into two subgroups. We also show that Hopf algebras in the category of finite sets with correspondences as morphisms are classified in a similar way. Our results can be used to explain some results on Hopf algebras from the set-theoretical point of view. © 2001 Academic Press.
ISSN0021-8693
2011 Impact Factor: 0.613
2011 SCImago Journal Rankings: 0.037
DOIhttp://dx.doi.org/10.1006/jabr.2000.8459
ISI Accession Number IDWOS:000167404300001
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorLu, JH
dc.contributor.authorYan, M
dc.contributor.authorZhu, Y
dc.date.accessioned2012-08-08T08:40:30Z
dc.date.available2012-08-08T08:40:30Z
dc.date.issued2001
dc.description.abstractWe show that if a finite dimensional Hopf algebra H over C has a basis with respect to which all the structure constants are nonnegative, then H is isomorphic to the bi-cross-product Hopf algebra constructed by Takeuchi and Majid from a finite group G and a unique factorization G=G +G - of G into two subgroups. We also show that Hopf algebras in the category of finite sets with correspondences as morphisms are classified in a similar way. Our results can be used to explain some results on Hopf algebras from the set-theoretical point of view. © 2001 Academic Press.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationJournal Of Algebra, 2001, v. 237 n. 2, p. 421-445 [How to Cite?]
DOI: http://dx.doi.org/10.1006/jabr.2000.8459
dc.identifier.doihttp://dx.doi.org/10.1006/jabr.2000.8459
dc.identifier.epage445
dc.identifier.isiWOS:000167404300001
dc.identifier.issn0021-8693
2011 Impact Factor: 0.613
2011 SCImago Journal Rankings: 0.037
dc.identifier.issue2
dc.identifier.scopuseid_2-s2.0-18044384094
dc.identifier.spage421
dc.identifier.urihttp://hdl.handle.net/10722/156127
dc.identifier.volume237
dc.languageeng
dc.publisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/jalgebra
dc.publisher.placeUnited States
dc.relation.ispartofJournal of Algebra
dc.relation.referencesReferences in Scopus
dc.titleOn Hopf algebras with positive bases
dc.typeArticle
Author Affiliations
  1. Hong Kong University of Science and Technology