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W0^1p(x) Versus C^1 Local Minimizers for a Functional with Critical Growth
引用本文:SAOUDI,K. W0^1p(x) Versus C^1 Local Minimizers for a Functional with Critical Growth[J]. 偏微分方程(英文版), 2014, 27(2): 115-124. DOI: 10.4208/jpde.v27.n2.2
作者姓名:SAOUDI  K
作者单位:College of arts and sciences at Nayriya, university of Dammam 31441 Dammam,Kingdom of Saudi Arabia.
基金项目:Acknowledgments The author would like to thank the anonymous referees for their carefully reading this paper and their useful comments.
摘    要:Let Ω IR^N, (N ≥ 2) be a bounded smooth domain, p is Holder continuous on Ω^-,
1 〈 p^- := inf pΩ(x) ≤ p+ = supp(x) Ω〈∞,
and f:Ω^-× IR be a C^1 function with f(x,s) ≥ 0, V (x,s) ∈Ω × R^+ and sup ∈Ωf(x,s) ≤ C(1+s)^q(x), Vs∈IR^+,Vx∈Ω for some 0〈q(x) ∈C(Ω^-) satisfying 1 〈p(x) 〈q(x) ≤p^* (x) -1, Vx ∈Ω ^- and 1 〈 p^- ≤ p^+ ≤ q- ≤ q+. As usual, p* (x) = Np(x)/N-p(x) if p(x) 〈 N and p^* (x) = ∞- if p(x) if p(x) 〉 N. Consider the functional I: W0^1,p(x) (Ω) →IR defined as
I(u) def= ∫Ω1/p(x)|△|^p(x)dx-∫ΩF(x,u^+)dx,Vu∈W0^1,p(x)(Ω),
where F (x, u) = ∫0^s f (x,s) ds. Theorem 1.1 proves that if u0 ∈ C^1 (Ω^-) is a local minimum of I in the C1 (Ω^-) ∩C0 (Ω^-)) topology, then it is also a local minimum in W0^1,p(x) (Ω)) topology. This result is useful for proving multiple solutions to the associated Euler-lagrange equation (P) defined below.

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W01,p(x) versus C1 Local Minimizers for a Functional with Critical Growth
K. Saoudi. W01,p(x) versus C1 Local Minimizers for a Functional with Critical Growth[J]. , 2014, 27(2): 115-124. DOI: 10.4208/jpde.v27.n2.2
Authors:K. Saoudi
Abstract:Let $Ω⊂mathbb{R}^N$, $(N ≥ 2)$ be a bounded smooth domain, p is Hölder continuous on $overline{Omega}$, $1 ‹ p^–:=inf_Ωp(x)≤p^+=sup_Ωp(x)›∞,$ and $f : overline{Omega}×mathbb{R}→mathbb{R}$ be a C¹ function with $f (x,s) ≥ 0, ∀(x,s)∈Ω×mathbb{R}^+$ and $sup_x∈Ω f (x,s)≤ C(1+s)^{q(x)}$, $∀s∈mathbb{R}^+, ∀x∈Ω$ for some p (x)-Laplacian equation variational methods local minimizer.
Keywords:p (x)-Laplacian equation  variational methods  local minimizer.
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