2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69361We characterize the group $\operatorname{Aut}(\mathbb G_2)$ for the symmetrized bidisc $\mathbb G_2:=\{(λ_1+λ_2,λ_1λ_2):|λ_1|,|λ_2|<1\}\sub set\mathbb C^2$.3 pagesComplex Variables32M17text