A Yangian Double for the AdS/CFT Classical r-matrix

Understand

We express the classical r-matrix of AdS/CFT in terms of tensor products involving an infinite family of generators, which takes a form suggestive of the universal expression obtained from a Yangian double.

• This should provide an insight into the structure of the infinite dimensional symmetry algebra underlying the integrability of the model, and give a clue to the construction of its universal R-matrix.
• We derive the commutation relations under which the algebra of these new generators close.