Abstract
We propose here a new method for the investigation of embedding operators. It is based on an exact description of classes of homeomorphisms that induce change of variables operators on the Sobolev spaces. This method permits to obtain new exact results about embedding operators Wp1(G){right arrow, hooked}Lq(G) (or C(G)) in domains G ⊂ ℝn with irregular boundaries. For these types of domains the behavior of the limiting embedding exponent q1,G*(p) is very complicated and surprising. We construct classes of simply connected domains with nonsmooth function q1,G*(p) and a class of multiply connected domains with discontinuous function q1,G*(P).
Original language | English |
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Pages (from-to) | 1-24 |
Number of pages | 24 |
Journal | Integral Equations and Operator Theory |
Volume | 19 |
Issue number | 1 |
DOIs | |
State | Published - 1 Mar 1994 |
Keywords
- MSC 1991: Primary 46E39, Secondary 30C60
ASJC Scopus subject areas
- Analysis
- Algebra and Number Theory