Symmetries of Snyder--de Sitter space and relativistic particle dynamics
  We study the deformed conformal-Poincare symmetries consistent with the Snyder--de Sitter space. A relativistic particle model invariant under these deformed symmetries is given. This model is used to provide a gauge independent derivation of the Snyder--de Sitter algebra. Our results are valid in the leading order in the parameters appearing in the model. 
Rabin Banerjee, Kuldeep Kumar and Dibakar Roychowdhury
hep-th