TY - JOUR ID - Papageorgiou2024 LB - Papageorgiou2024 AU - Papageorgiou, Nikolaos S. AU - Rădulescu, Vicenţiu D. AU - Sun, Xueying TI - Positive solutions for nonparametric anisotropic singular solutions ST - Positive solutions for nonparametric anisotropic singular solutions JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2024 VL - 44 IS - 3 SP - 409 EP - 423 DO - https://doi.org/10.7494/OpMath.2024.44.3.409 UR - https://doi.org/10.7494/OpMath.2024.44.3.409 AB - We consider an elliptic equation driven by a nonlinear, nonhomogeneous differential operator with nonstandard growth. The reaction has the combined effects of a singular term and of a "superlinear" perturbation. There is no parameter in the problem. Using variational tools and truncation and comparison techniques, we show the existence of at least two positive smooth solutions. KW - variable Lebesgue and Sobolev spaces KW - anisotropic regularity KW - anisotropic maximum principle KW - truncations and comparisons KW - Hardy inequality SN - 1232-9274 ER -