Abstract
We consider a parametric Dirichlet problem driven by a nonhomogenous differential operator. In the parametric reaction we have the competing effects of a singular term and of a superlinear perturbation which is sign-changing. Using variational tools together with truncation and comparison techniques we show that for all small values of the parameter the problem has at least two smooth solutions.
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Acknowledgements
The authors thank the two anonymous reviewers for their corrections and remarks. The third author was supported by the grant “Nonlinear Differential Systems in Applied Sciences” of the Romanian Ministry of Research, Innovation and Digitization within PNRR-III-C9-2022-I8 (Grant No.22).
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Bień, K., Majdak, W. & Papageorgiou, N.S. Parametric Singular Problems with an Indefinite Perturbation. J Geom Anal 34, 103 (2024). https://doi.org/10.1007/s12220-024-01549-1
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DOI: https://doi.org/10.1007/s12220-024-01549-1