Abstract
This paper concerns Hopf's boundary point lemma, in certain C1, Dini-type domains, for a class of singular/degenerate PDE-s, including p-Laplacian. Using geometric properties of levels sets for harmonic functions in convex rings, we construct sub-solutions to our equations that play the role of a barrier from below. By comparison principle we then conclude Hopf's lemma.
| Original language | English |
|---|---|
| Pages (from-to) | 475-484 |
| Number of pages | 10 |
| Journal | Annales Academiae Scientiarum Fennicae Mathematica |
| Volume | 40 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2015 |
| Externally published | Yes |
Keywords
- Partial differential equations
- Regularity
ASJC Scopus subject areas
- General Mathematics