6533b82efe1ef96bd129343d

RESEARCH PRODUCT

On the Porosity of Free Boundaries in Degenerate Variational Inequalities

Tero KilpeläinenHenrik ShahgholianLavi KarpArshak Petrosyan

subject

porosityLebesgue measureApplied MathematicsDegenerate energy levelsMathematical analysisZero (complex analysis)Boundary (topology)nonhomogeneous p-Laplace equationfree boundaryobstacle problemHausdorff dimensionVariational inequalityObstacle problemFree boundary problemAnalysisMathematics

description

Abstract In this note we consider a certain degenerate variational problem with constraint identically zero. The exact growth of the solution near the free boundary is established. A consequence of this is that the free boundary is porous and therefore its Hausdorff dimension is less than N and hence it is of Lebesgue measure zero.

https://doi.org/10.1006/jdeq.1999.3754