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Universal R-matrix formalism for the spin Calogero-Moser system and its difference counterpart
The expression of the quantum Ruijsenaars-Schneider Hamiltonian is obtained in the framework of the dynamical R-matrix formalism. This generalizes to the case of
the result obtained in [3] for
, which is the higher difference Lame operator. The same result was obtained in [5] using the "fusion" procedure. The distinctive starting point of the present paper is the universal dynamical R-matrix.