where e6da6c268a9789e4eb4e64b8" title="Click to view the MathML source">Δpz:=div(|∇z|p−2∇z), e5a4a8f8f619e47d760eb" title="Click to view the MathML source">1<p<n, λ is a positive parameter, r0>0 and ΩE:={x∈Rn | |x|>r0}. Here the weight function bfa1b2c54103e" title="Click to view the MathML source">K∈C1[r0,∞) satisfies K(r)>0 for e4e7bb76170b3b326cb2a7" title="Click to view the MathML source">r≥r0, limr→∞K(r)=0, and the reaction term e450" title="Click to view the MathML source">f∈C[0,∞)∩C1(0,∞) is strictly increasing and satisfies e6a3f3497ab947229" title="Click to view the MathML source">f(0)<0 (semipositone), , lims→∞f(s)=∞, bfc3f672426254e7940ee95f6cd2"> and e423808bc7ad01fc07568a7"> is nonincreasing on afa626400eb66cbdec95e43bf" title="Click to view the MathML source">[a,∞) for some bf366bb1c45589078abf9ed957f85e9b" title="Click to view the MathML source">a>0 and q∈(0,p−1). For a class of such steady state equations it turns out that every nonnegative radial solution is strictly positive in the exterior of a ball, and exists for λ≫1. We establish the uniqueness of this positive radial solution for λ≫1.