2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/88096We calculate commutation relations of vertex operators for the spin representation of $U_q(D_n^{(1)})$ by using recursive formulae of R-matrices. In quantum symmetry approach, we obtain the energy and momentum spectrum of the quantum spin chain model related with the spin representation from these commutation relations.39 pages amslatexQuantum Algebratext