Multiparametric Quantum Algebras and the Cosmological Constant
  With a view towards applications for de Sitter, we construct the multi-parametric $q$-deformation of the $so(5,\IC)$ algebra using the Faddeev-Reshetikhin-Takhtadzhyan (FRT) formalism. 
Chethan Krishnan, Edoardo Di Napoli