Electronic Journal of Differential Equations Electron. J. Diff. Eqns., Vol. 2005(2005), No. 109, pp. 1-12.
Dirichlet problems for semilinear elliptic equations with a fast growth coefficient on unbounded domains
Zhiren Jin
Abstract: When an unbounded domain is inside a slab, existence of a positive solution is proved for the Dirichlet problem of a class of semilinear elliptic equations that are similar either to the singular Emden-Fowler equation or a sublinear elliptic equation. The result obtained can be applied to equations with coefficients of the nonlinear term growing exponentially. The proof is based on the super and sub-solution method. A super solution itself is constructed by solving a quasilinear elliptic equation via a modified Perron's method.
Submitted February 11, 2005. Published October 10, 2005.
Math Subject Classifications: 35J25, 35J60, 35J65.
Key Words: Elliptic boundary-value problems; positive solutions; semilinear equations; unbounded domains; Perron's method; super solutions
Show me the PDF file (245K), TEX file, and other files for this article.
| Zhiren Jin Department of Mathematics and Statistics Wichita State University Wichita, Kansas, 67260-0033, USA email: zhiren@math.wichita.edu |
Return to the EJDE web page