Towards a topological (dual of) quantum kappa-Poincar\'{e} group
classification
✦ hep-th
math.QA
keywords
actiongroupkappafactorizationmanifoldpoincaralgebraicapproproate
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We argue that the $\kappa$-deformation is related to a factorization of a Lie group, therefore {\em an approproate version of $\kappa$-Poincar\'{e} does exist on the $C^*$-algebraic level}. The explict form of this factorization is computed that leads to an ``action'' of the Lorentz group (with space reflections) considered in Doubly Special Relativity theory. The orbit structure is found and ``the momentum manifold'' is extended in a way that removes singularities of the ``action'' and results in a true action. Some global properties of this manifold are investigated
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