Abstract
In this paper we show that a solution of the equation -Δ ρ(x)u = μ is Hölder continuous with exponent α if and only if the nonnegative Radon measure μ satisfies the growth condition μ(Br(x))≤ Crn-ρ(x)+α(ρ(x)-1) for any ball Br(x)⊂ Ω, with r small enough. This extends an old result of Lewy and Stampacchia for the Laplace operator, and a recent result of Kilpelinen and Zhong for the p-Laplace operator with p constant.
| Original language | English |
|---|---|
| Pages (from-to) | 2433-2444 |
| Number of pages | 12 |
| Journal | Nonlinear Analysis, Theory, Methods and Applications |
| Volume | 73 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Oct 15 2010 |
| Externally published | Yes |
Keywords
- ρ(x)-Laplace operator
- ρ(x)-superharmonic functions
- Hölder continuity
- Radon measure
- Variable exponent Sobolev spaces
ASJC Scopus subject areas
- Analysis
- Applied Mathematics