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ISRN AlgebraVolume 2013 2013, Article ID 817919, 9 pages

Research Article

Institute of Mathematics -Simion Stoilow- of the Romanian Academy, P.O. Box 1-764, 014700 Bucharest, Romania

Cambridge Cancer Trials Centre, Department of Oncology, University of Cambridge, Addenbrookes Hospital, P.O. Box 279 Hills Road, Cambridge CB2 0QQ, UK

MRC Biostatistics Unit Hub in Trials Methodology Research, University Forvie Site, Robinson Way, Cambridge CB2 0SR, UK

Department of Theoretical Physics and Informatics, University of Łódź, Pomorska 149-153, 90-236 Łódź, Poland

Received 6 October 2012; Accepted 31 October 2012

Academic Editors: W. de Graaf, V. Drensky, and S. Yang

Copyright © 2013 Florin F. Nichita et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Semientwining structures are proposed as concepts simpler than entwining structures, yet they are shown to have interesting applications in constructing intertwining operators and braided algebras, lifting functors, finding solutions for Yang-Baxter systems, and so forth. While for entwining structures one can associate corings, for semientwining structures one can associate comodule algebra structures where the algebra involved is a bialgebra satisfying certain properties.

Autor: Florin F. Nichita, Deepak Parashar, and Bartosz Zieliński



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