2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/65568For the family Delta_q, q in [0,1), of the SU_q(2)-comultiplications on the C*-algebra A\cong C(SU_q(2)), we show that there exist unitary operators Omega_q such that Delta_q(x)=Omega_q Delta_0(x) (Omega_q)* for x in A.7 pages, LaTeXQuantum AlgebraOperator Algebras46L89; 16W30, 81R50A cocycle for the comultiplication on the quantum SU(2) grouptext