Existence and Uniqueness of Positive Solutions to Sublinear-Linear Initial Value Problems

Existence and uniqueness conditions for nonnegative solutions to initial value prob- lems of general sublinear-linear differential equations are obtained.They extend the uniqueness theorem due to H.Murakami~[6] and the main results of H.G.Kaper and M.K.Kwong~[4].

On the Uniqueness of the Positive Solution for a Semilinear Elliptic Problem with Critical Exponent

This paper discussed the uniqueness of the positive solution for a semilinear elliptic problem with critical exponent