κ-Deformations and extended κ-Minkowski spacetimes
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
κ-Deformations and extended κ-Minkowski spacetimes
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| Creator |
Borowiec, A.
Pachoł, A. |
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| Description |
We extend our previous study of Hopf-algebraic κ-deformations of all inhomogeneous orthogonal Lie algebras iso(g) as written in a tensorial and unified form. Such deformations are determined by a vector τ which for Lorentzian signature can be taken time-, light- or space-like. We focus on some mathematical aspects related to this subject. Firstly, we describe real forms with connection to the metric's signatures and their compatibility with the reality condition for the corresponding κ-Minkowski (Hopf) module algebras. Secondly, h-adic vs q-analog (polynomial) versions of deformed algebras including specialization of the formal deformation parameter κ to some numerical value are considered. In the latter the general covariance is lost and one deals with an orthogonal decomposition. The last topic treated in this paper concerns twisted extensions of κ-deformations as well as the description of resulting noncommutative spacetime algebras in terms of solvable Lie algebras. We found that if the type of the algebra does not depend on deformation parameters then specialization is possible.
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| Date |
2019-02-09T20:43:50Z
2019-02-09T20:43:50Z 2014 |
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| Type |
Article
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| Identifier |
κ-Deformations and extended κ-Minkowski spacetimes/ A. Borowiec, A. Pachoł // Symmetry, Integrability and Geometry: Methods and Applications. — 2014. — Т. 10. — Бібліогр.: 88 назв. — англ.
1815-0659 2010 Mathematics Subject Classification: 81T75; 58B22; 16T05; 17B37; 81R60 DOI:10.3842/SIGMA.2014.107 http://dspace.nbuv.gov.ua/handle/123456789/146537 |
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| Language |
en
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| Relation |
Symmetry, Integrability and Geometry: Methods and Applications
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| Publisher |
Інститут математики НАН України
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