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  • High perturbations of quasilinear problems with double criticality
    Alarcón, Antonio ; Garain, Prashanta ; Rǎdulescu, Vicenţiu, 1958-
    This paper is concerned with the qualitative analysis of solutions to the following class of quasilinear problems ▫$$\begin{cases} -\Delta _{\Phi }u=f(x,u) &{}\quad \text {in } \Omega ,\\ u=0 ... &{}\quad \text {on }\partial \Omega , \end{cases}$$▫ where ▫$\Delta _{\Phi }u=\mathrm{div}\,(\varphi (x,|\nabla u|)\nabla u)$▫ and ▫$\Phi (x,t)=\int _{0}^{|t|}\varphi (x,s)s\,ds$▫ is a generalized N-function. We assume that ▫$\Omega \subset {\mathbb {R}}^N$▫ is a smooth bounded domain that contains two open regions ▫$\Omega _N,\Omega _p$▫ with ▫${\overline{\Omega }}_N \cap {\overline{\Omega }}_p=\emptyset$▫. The features of this paper are that ▫$-\Delta _{\Phi }u$▫ behaves like ▫$-\Delta _N u$▫ on ▫$\Omega _N$▫ and ▫$-\Delta _p u$▫ on ▫$-\Delta _p u$▫, and that the growth of ▫$f:\Omega \times {\mathbb {R}} \rightarrow {\mathbb {R}}$▫ is like that of ▫$e^{\alpha |t|^{\frac{N}{N-1}}}$▫ on ▫$\Omega _N$▫ and as ▫$|t|^{p^{*}-2}t$▫ on ▫$-\Delta _p u$▫ when |t| is large enough. The main result establishes the existence of solutions in a suitable Musielak-Sobolev space in the case of high perturbations with respect to the values of a positive parameter.
    Vir: Mathematische Zeitschrift. - ISSN 0025-5874 (Vol. 299, iss. 3-4, Dec. 2021, 21 str. 1875-1895)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2021
    Jezik - angleški
    COBISS.SI-ID - 61064195

vir: Mathematische Zeitschrift. - ISSN 0025-5874 (Vol. 299, iss. 3-4, Dec. 2021, 21 str. 1875-1895)
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