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Cayley--Klein Contractions of Quantum Orthogonal Groups in Cartesian Basis

Quantum Algebra 2015-06-26 v3 High Energy Physics - Theory

Abstract

Spaces of constant curvature and their motion groups are described most naturally in Cartesian basis. All these motion groups also known as CK groups are obtained from orthogonal group by contractions and analytical continuations. On the other hand quantum deformation of orthogonal group SO(N)SO(N) is most easily performed in so-called symplectic basis. We reformulate its standard quantum deformation to Cartesian basis and obtain all possible contractions of quantum orthogonal group SOq(N)SO_q(N) both for untouched and transformed deformation parameter. It turned out, that similar to undeformed case all CK contractions of SOq(N)SO_q(N) are realized. An algorithm for obtaining nonequivalent (as Hopf algebra) contracted quantum groups is suggested. Contractions of SOq(N),N=3,4,5SO_q(N), N=3,4,5 are regarded as an examples.

Keywords

Cite

@article{arxiv.math/0401088,
  title  = {Cayley--Klein Contractions of Quantum Orthogonal Groups in Cartesian Basis},
  author = {N. A. Gromov and V. V. Kuratov},
  journal= {arXiv preprint arXiv:math/0401088},
  year   = {2015}
}

Comments

The statement of the basic theorem have correct. 30 pages, Latex. Report given at X International Conference on Symmetry Methods in Physics, August 13-19, 2003, Yerevan, Armenia. Submitted in Journal Physics of Atomic Nuclei

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