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Uniqueness of positive radial solutions for a class of infinite semipositone \(p\)-Laplacian problems in a ball. (English) Zbl 1442.34041

The authors consider a mixed boundary value problem with \(p\)-Laplacian: \[ -(r^{N-1}\phi(u'))' = \lambda r^{N-1}f(u) \quad \text{on } \ (0,1), \\ u'(0) = 0, \quad u(1) = 0, \] where \(\phi(z) = |z|^{p-2}z\), \(p > 1\), \(\lambda \in {\mathbb R}\), \(f:{\mathbb R}\to{\mathbb R}\) continuously differentiable on \((0,\infty)\). Sufficient conditions are given for the existence of unique positive solution for sufficiently large values of the parameter \(\lambda\).
These results are obtained by using previous results of the second author [J. Math. Anal. Appl. 383, No. 2, 619–626 (2011; Zbl 1223.35137)].

MSC:

34B09 Boundary eigenvalue problems for ordinary differential equations
34B16 Singular nonlinear boundary value problems for ordinary differential equations
34B18 Positive solutions to nonlinear boundary value problems for ordinary differential equations
35J62 Quasilinear elliptic equations

Citations:

Zbl 1223.35137

References:

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