Geodesic
Barriers on cones for degenerate quasilinear elliptic operators
Electronic Journal of Differential Equations, Tome 1998 (1998).

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: Barrier functions $$ {d\over dx_i}(|x|^\tau|u|^q|\nabla u|^{m-2}u_{x_i})= \mu |x|^\tau{|u|}^{q-1}\,{\rm sgn\,}u|\nabla u|^m\,,$ -1 less than \mu \leq 0\,,\quad q\geq 0\,,\quad m greater than 1 \,,\quad\tau greater than m-n$.$$
Classification : 35J65, 35J70, 35B05, 35B45, 35B65
Keywords: quasilinear elliptic equations, barrier functions, conical points 
@article{EJDE_1998__1998__a6,
     author = {Borsuk, Michail and Portnyagin, Dmitriy},
     title = {Barriers on cones for degenerate quasilinear elliptic operators},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {1998},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1998__1998__a6/}
}
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Borsuk, Michail; Portnyagin, Dmitriy. Barriers on cones for degenerate quasilinear elliptic operators. Electronic Journal of Differential Equations, Tome 1998 (1998). http://geodesic.mathdoc.fr/item/EJDE_1998__1998__a6/