Star product realizations of <var>κ</var>-Minkowski space

  • Bergfinnur Durhuus

    University of Copenhagen, Denmark
  • Andrzej Sitarz

    Jagiellonian University, Krakow, Poland


We define a family of star products and involutions associated with κ\kappa-Minkowski space. Applying corresponding quantization maps we show that these star products restricted to a certain space of Schwartz functions have isomorphic Banach algebra completions. For two particular star products it is demonstrated that they can be extended to a class of polynomially bounded smooth functions allowing a realization of the full Hopf algebra structure on κ\kappa-Minkowski space. Furthermore, we give an explicit realization of the action of the κ\kappa-Poincaré algebra as an involutive Hopf algebra on this representation of κ\kappa-Minkowski space and initiate a study of its properties.

Cite this article

Bergfinnur Durhuus, Andrzej Sitarz, Star product realizations of <var>κ</var>-Minkowski space. J. Noncommut. Geom. 7 (2013), no. 3, pp. 605–645

DOI 10.4171/JNCG/129