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Article type: Research Article
Authors: Polito, Andrea; *
Affiliations: Sapienza Università di Roma, Italy
Correspondence: [*] Corresponding author. E-mail: andrea.polito@sbai.uniroma1.it.
Abstract: We study existence and regularity of weak solutions for a class of boundary value problems, whose form is −div(log(1+|∇u|)|∇u|m(x)∇u)+u|∇u|log(1+|∇u|)=f(x),in Ωu=0,on ∂Ω where both the principal part and the lower order term have a logarithmic growth with respect to the gradient of the solutions. We prove that the solutions, due to the regularizing effect given by the lower order term, belong to the Orlicz–Sobolev space generated by the function slog(1+|s|) even for L1(Ω) data.
Keywords: Nonlinear partial differential equations, Orlicz–Sobolev spaces, Logarithmic growth
DOI: 10.3233/ASY-221773
Journal: Asymptotic Analysis, vol. 131, no. 2, pp. 233-254, 2023
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