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, Tome 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
Marcus, Moshe 1 ; Véron, Laurent 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
@article{CRMATH_2007__344_5_299_0,
     author = {Marcus, Moshe and V\'eron, Laurent},
     title = {Maximal solutions of the equation $ \mathrm{\Delta }u={u}^{q}$ in arbitrary domains},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {299--304},
     publisher = {Elsevier},
     volume = {344},
     number = {5},
     year = {2007},
     doi = {10.1016/j.crma.2007.01.002},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2007.01.002/}
}
TY  - JOUR
AU  - Marcus, Moshe
AU  - Véron, Laurent
TI  - Maximal solutions of the equation $ \mathrm{\Delta }u={u}^{q}$ in arbitrary domains
JO  - Comptes Rendus. Mathématique
PY  - 2007
SP  - 299
EP  - 304
VL  - 344
IS  - 5
PB  - Elsevier
UR  - http://www.numdam.org/articles/10.1016/j.crma.2007.01.002/
DO  - 10.1016/j.crma.2007.01.002
LA  - en
ID  - CRMATH_2007__344_5_299_0
ER  - 
%0 Journal Article
%A Marcus, Moshe
%A Véron, Laurent
%T Maximal solutions of the equation $ \mathrm{\Delta }u={u}^{q}$ in arbitrary domains
%J Comptes Rendus. Mathématique
%D 2007
%P 299-304
%V 344
%N 5
%I Elsevier
%U http://www.numdam.org/articles/10.1016/j.crma.2007.01.002/
%R 10.1016/j.crma.2007.01.002
%G en
%F CRMATH_2007__344_5_299_0
Marcus, Moshe; Véron, Laurent. Maximal solutions of the equation $ \mathrm{\Delta }u={u}^{q}$ in arbitrary domains. Comptes Rendus. Mathématique, Tome 344 (2007) no. 5, pp. 299-304. doi : 10.1016/j.crma.2007.01.002. http://www.numdam.org/articles/10.1016/j.crma.2007.01.002/

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

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

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

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

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

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

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

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

Cité par Sources :