Fuzzy de Sitter space-times via coherent states quantization
  A construction of the 2d and 4d fuzzy de Sitter hyperboloids is carried out by using a (vector) coherent state quantization. We get 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 infinite spins is examined. 
Jean-Pierre Gazeau (APC), Jihad Mourad (APC), Julien Queva (APC)