Comptes Rendus
Partial Differential Equations
Maximal solutions of the equation Δu=uq in arbitrary domains
[Solutions maximales de Δu=uq dans un domaine arbitraire]
Comptes Rendus. Mathématique, Volume 344 (2007) no. 5, pp. 299-304.

Nous démontrons une estimation capacitaire bilatérale de la solution maximale UF de Δu+uq=0 dans un domaine quelconque de RN impliquant la capacité de Bessel C2,q dans le cas sur-critique qqc:=N/(N2). Grâce à un critère de type Wiener, nous en déduisons une condition nécessaire et suffisante pour que cette solution maximale tende vers l'infini en un point du bord du domaine. Finalement nous prouvons un résultat général d'unicité des grandes solutions.

We prove bilateral capacitary estimates for the maximal solution UF of Δu+uq=0 in the complement of an arbitrary closed set FRN, involving the Bessel capacity C2,q, for q in the supercritical range qqc:=N/(N2). We derive a pointwise necessary and sufficient condition, via a Wiener type criterion, in order that UF(x) as xy for given yF. Finally we prove a general uniqueness result for large solutions.

Accepté le :
Publié le :
DOI : 10.1016/j.crma.2007.01.002
Moshe Marcus 1 ; Laurent Véron 2

1 Department of Mathematics, Technion, Haifa 32000, Israel
2 Laboratoire de mathématiques et physique théorique, faculté des sciences, parc de Grandmont, 37200 Tours, France
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     title = {Maximal solutions of the equation $ \mathrm{\Delta }u={u}^{q}$ in arbitrary domains},
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Moshe Marcus; Laurent Véron. Maximal solutions of the equation $ \mathrm{\Delta }u={u}^{q}$ in arbitrary domains. Comptes Rendus. Mathématique, Volume 344 (2007) no. 5, pp. 299-304. doi : 10.1016/j.crma.2007.01.002. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2007.01.002/

[1] D.R. Adams; L.I. Hedberg Function Spaces and Potential Theory, Grundlehren Math. Wiss., vol. 314, Springer, 1996

[2] P. Baras; M. Pierre Singularitées éliminables pour des équations semi-linéaires, Ann. Inst. Fourier (Grenoble), Volume 34 (1984) no. 1, pp. 185-206

[3] J.-S. Dhersin; J.-F. Le Gall Wiener's test for super-Brownian motion and the Brownian snake, Probab. Theory Related Fields, Volume 108 (1997), pp. 103-129

[4] D.A. Labutin Wiener regularity for large solutions of nonlinear equations, Ark. Mat., Volume 41 (2003), pp. 307-339

[5] M. Marcus; L. Véron The boundary trace of positive solutions of semilinear elliptic equations: the subcritical case, Arch. Ration. Mech. Anal., Volume 144 (1998), pp. 201-231

[6] M. Marcus; L. Véron Existence and uniqueness results for large solutions of general nonlinear elliptic equations, J. Evol. Equ., Volume 3 (2003), pp. 637-652 (Dedicated to Philippe Bénilan)

[7] M. Marcus; L. Véron Capacitary estimates of positive solutions of semilinear elliptic equations with absorption, J. Eur. Math. Soc., Volume 6 (2004), pp. 483-527

[8] M. Marcus; L. Véron Capacitary representation of positive solutions of semilinear parabolic equations, C. R. Acad. Sci. Paris, Ser. I, Volume 342 (2006), pp. 655-660

[9] L. Véron Generalized boundary values problems for nonlinear elliptic equations, Electron J. Differ. Equ. Conf., Volume 06 (2001), pp. 313-342

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