Abstract
We consider a family of noncommutative four-dimensional Minkowski spaces with the signature (1, 3) and two types of spaces with the signature (2, 2). The Minkowski spaces are defined by the common reflection equation and differ in anti-involutions. There exist two Casimir elements, and. xing one of them leads to the noncommutative “ homogeneous” spaces H3, dS3, AdS3, and light cones. We present a semiclassical description of the Minkowski spaces. There are three compatible Poisson structures: quadratic, linear, and canonical. Quantizing the first leads to the Minkowski spaces. We introduce horospheric generators of the Minkowski spaces, and they lead to the horospheric description of H3, dS3, and AdS3. We construct irreducible representations of the Minkowski spaces H3 and dS3. We find eigenfunctions of the Klein-Gordon equation in terms of the horospheric generators of the Minkowski spaces, and they lead to eigenfunctions on H3, dS3, AdS3, and light cones.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 144, No. 3, pp. 513–543, September, 2005.
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Olshanetsky, M.A., Rogov, VB.K. dS-AdS Structures in Noncommutative Minkowski Spaces. Theor Math Phys 144, 1315–1343 (2005). https://doi.org/10.1007/s11232-005-0162-2
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DOI: https://doi.org/10.1007/s11232-005-0162-2