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1. Nonlinear singular problems with indefinite potential term Nikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2019, izvirni znanstveni članek Ključne besede: nonhomogeneous differential operator, indefinite potential, singular term, concave and convex nonlinearities, truncation, comparison principles, nonlinear regularity, nonlinear maximum principle |
2. Anisotropic equations with indefinite potential and competing nonlinearities Nikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2020, izvirni znanstveni članek Ključne besede: variable exponent spaces, regularity theory, maximum principle, concave and convex nonlinearities, positive solutions, comparison principles |