Jordan chains of elliptic partial differential operators and Dirichlet-to-Neumann maps

Abstract

Let $\Omega \subset {\mathbf{R}}^d$ be a bounded open set with Lipschitz boundary $\Gamma$. It will be shown that the Jordan chains of m-sectorial second-order elliptic partial differential operators with measurable coefficients and (local or non-local) Robin boundary conditions in $L_2(\Omega )$ can be characterized with the help of Jordan chains of the Dirichlet-to-Neumann map and the boundary operator from $H^{1/2}(\Gamma )$ into $H^{-1/2}(\Gamma )$. This result extends the Birman--Schwinger principle in the framework of elliptic operators for the characterization of eigenvalues, eigenfunctions and geometric eigenspaces to the complete set of all generalized eigenfunctions and algebraic eigenspaces.

References in corpus (3)

• Spectra of self-adjoint extensions and applications to solvable Schroedinger operators
• The Dirichlet-to-Neumann operator via hidden compactness
• Characterizations of generalized poles by pole cancellation functions of higher order

Cited by in corpus (1)

• The Generalized Birman-Schwinger Principle