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Uniqueness and nonuniqueness for positive radial solutions of $$\Delta u+f(u,r)=0$$. (English) Zbl 0581.35021
The authors give existence and nonexistence results for radial solutions of the equation $$\Delta u+f(u,| x|)=0$$.
Reviewer: M.Biroli

##### MSC:
 35J65 Nonlinear boundary value problems for linear elliptic equations 35A05 General existence and uniqueness theorems (PDE) (MSC2000) 35B05 Oscillation, zeros of solutions, mean value theorems, etc. in context of PDEs