Uniqueness of positive radial solutions for Dirichlet problems on annular domains

This paper deals with the uniqueness of positive radial solutions to Dirichlet problems on annular domains in Rn, n⩾3. As an application we can obtain the results to equation Δu+up−α1u−α0=0, where p>1, α1⩾0, α0⩾0 and α1+α0>0.