| Abstract: |
| {
We consider a singular Dirichlet problem driven by a nonlinear
nonhomogeneous differential operator and with a reaction involving the
competing effects of a parametric singular term and of an indefinite
superlinear Caratheodory perturbation. Using variational tools together with
truncation and comparison techniques, we prove an existence and multiplicity
result which is global in the parameter $\lambda >0$ (a bifurcation-type
theorem).} |
|