2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/173489We consider semilinear elliptic equations with double power nonlineaities. The condition to assure the existence of positive solutions is well-known. In the present paper, we remark that the additional condition to assure uniqueness proposed by Ouyang and Shi is unnecessary.Analysis of PDEs35B05text