Riesz bases for $L^2(\partial \Omega )$ and regularity for the Laplace equation in Lipschitz domains

Abdellatif Chaira, Soumia Touhami

In a paper from 1996, D. Jerison and C. Kenig among other results provided a $H^{1/2}$ regularity result for the Dirichlet problem for the Laplace equation in Lipschitz domains. In…