Advanced Search
Article Contents
Article Contents

Gradient blow-up in Zygmund spaces for the very weak solution of a linear elliptic equation

Abstract Related Papers Cited by
  • It is known that the very weak solution of $-∫_Ω u\Deltaφ dx=∫_Ω fφ dx$, $∀φ∈ C^2(\overline{Ω}),$ $φ=0$ on $∂Ω$, $u\in L^1(Ω)$ has its gradient in $Ł^1(Ω)$ whenever $f∈ L^1(Ω;δ(1+|Lnδ|))$, $δ(x)$ being the distance of $x∈Ω$ to the boundary. In this paper, we show that if $f≥0$ is not in this weighted space $L^1(Ω;δ(1+|Lnδ|))$, then its gradient blows up in $L(\log L)$ at least. Moreover, we show that there exist a domain $Ω$ of class $C^\infty$ and a function $f∈ L^1_+(Ω,δ)$ such that the associated very weak solution has its gradient being non integrable on $Ω$.
    Mathematics Subject Classification: 35B44, 35A01, 35J67, 35J25.


    \begin{equation} \\ \end{equation}
  • [1]

    Colin Bennett and Robert Sharpley, "Interpolation of Operators," Pure and Applied Mathematics, 129. Academic Press, Inc., Boston, MA, 1988. xiv+469 pp.


    Marie-Francoise Bidaut-Véron and Laurent Vivier, An elliptic semilinear equation with source term involving boundary measures: the subcritical case, Rev. Mat. Iberoamericana, 16 (2000), 477-513.doi: 10.4171/RMI/281.


    Haïm Brezis, "Analyse Fonctionnelle," [Functional analysis] Théorie et applications. [Theory and applications] Collection Mathématiques Appliquées. pour la Maîtrise. [Collection of Applied Mathematics for the Master's Degree] Masson, Paris, 1983. xiv+234 pp.


    Haïm Brezis, Thierry Cazenave, Yvan Martel and Arthur Ramiandrisoa, Blow up for $u_t-\Delta u=g(u)$ revisited, Adv. Differential Equations, 1 (1996), 73-90.


    J. I. Díaz and J. M. Rakotoson, On the differentiability of very weak solutions with right-hand side data integrable with respect to the distance to the boundary, J. Funct. Anal., 257 (2009), 807-831.doi: 10.1016/j.jfa.2009.03.002.


    Jesus Idelfonso Díaz and Jean Michel Rakotoson, On very weak solutions of semi-linear elliptic equations in the framework of weighted spaces with respect to the distance to the boundary, Discrete Contin. Dyn. Syst., 27 (2010), 1037-1058.doi: 10.3934/dcds.2010.27.1037.


    Françoise Demengel and Gilbert Demengel, "Espaces Fonctionnels," (French) [Functional spaces] Utilisation dans la résolution des équations aux dérivées partielles. [Application to the solution of partial differential equations] Savoirs Actuels (Les Ulis). [Current Scholarship (Les Ulis)] EDP Sciences, Les Ulis; CNRS Éditions, Paris, 2007. xii+467 pp.


    David Gilbarg and Neil S. Trudinger, "Elliptic Partial Differential Equations of Second Order," Reprint of the 1998 edition. Classics in Mathematics. Springer-Verlag, Berlin, 2001. xiv+517 pp.


    J. M. Rakotoson, A few natural extension of the regularity of a very weak solution, Differential and Integral Equations, 24 (2011), 1125-1140.


    Jean-Michel Rakotoson, "Réarrangement Relatif," (French. French summary) [Relative rearrangement] Un instrument d'estimations dans les problèmes aux limites. [An estimation tool for limit problems] Mathématiques & Applications (Berlin) [Mathematics & Applications], 64. Springer, Berlin, 2008. xvi+293 pp.


    Jean-Émile Rakotoson and Jean-Michel Rakotoson, "Analyse Fonctionnelle Appliquée aux Équations aux Dérivées Partielles," [Functional analysis applied to partial differential equations] Mathématiques. [Mathematics] Presses Universitaires de France, Paris, 1999. 232 pp.

  • 加载中

Article Metrics

HTML views() PDF downloads(91) Cited by(0)

Access History

Other Articles By Authors



    DownLoad:  Full-Size Img  PowerPoint