TY - GEN AU - Cueto Avellaneda, María AU - Enami, Yuta AU - Hirota, Daisuke AU - Miura, Takeshi AU - Peralta Pereira, Antonio Miguel PY - 2022 UR - http://hdl.handle.net/10481/73064 AB - This paper is, in a first stage, devoted to establishing a topological–algebraic characterization of the principal component, U0(M), of the set of unitary elements, U(M), in a unital JB⁎-algebra M. We arrive to the conclusion that, as in the case of... LA - eng PB - Elsevier KW - Isometry KW - Unitary KW - Extension of isometries TI - Surjective isometries between unitary sets of unital JB∗-algebras DO - 10.1016/j.laa.2022.02.003 ER -