Potential Analysis

, Volume 38, Issue 4, pp 1333–1364

The Mixed Problem for the Laplacian in Lipschitz Domains

Article

DOI: 10.1007/s11118-012-9317-6

Cite this article as:
Ott, K.A. & Brown, R.M. Potential Anal (2013) 38: 1333. doi:10.1007/s11118-012-9317-6

Abstract

We consider the mixed boundary value problem, or Zaremba’s problem, for the Laplacian in a bounded Lipschitz domain Ω in Rn, n ≥ 2. We decompose the boundary \( \partial \Omega= D\cup N\) with D and N disjoint. The boundary between D and N is assumed to be a Lipschitz surface in \(\partial \Omega\). We find an exponent q0 > 1 so that for p between 1 and q0 we may solve the mixed problem for Lp. Thus, if we specify Dirichlet data on D in the Sobolev space W1,p(D) and Neumann data on N in Lp (N), the mixed problem with data fD and fN has a unique solution and the non-tangential maximal function of the gradient lies in \(L^p( \partial \Omega)\). We also obtain results for p = 1 when the data comes from Hardy spaces.

Keywords

Mixed boundary value problemLaplacianNon-smooth domain

Mathematics Subject Classification (2010)

35J25

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  1. 1.Department of MathematicsUniversity of KentuckyLexingtonKentucky