Transformación conforme para prescribir curvatura escalar a la esfera

in [1], granados proved the existence of a whole family of conformal metrics to the euclidean metric on sn having scalar curvature n(n ？1). in this paper, we find another solution to the problem of prescribing scalar curvature on sn. furthermore, if a family of solutions of the general problem is known, we get a new family of solutions.