| XXV Workshop on Geometric Methods in Physics | 2-8.07.2006 | |||||
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Julien QUEVAFuzzy de Sitter space-times via coherent state quantizationA construction of fuzzy de Sitter hyperboloids in $1+2$ and $1+4$ Minkowskian ambient spaces is carried out by using a (vector) coherent state quantization. The issue is a natural discretization of the dS time axis based on the spectrum of Casimir operators of the respective maximal compact subgroups SO(2) and SO(4) of the de Sitter groups SO_0(1,2) and SO_0(1,4). The continuous limit at higher spins is examined |