Preface.- W. Bauer, K. Furutani, C. Iwasaki: Spectral analysis and geometry of a sub-Laplacian and related Grushin type operators.- H. Bel Hadj Ali, A. Ben Amor, J. Brasche: Large coupling convergence: Overview and new results.- M. Ben-Artzi: Smooth spectral theory.- L. Chen, M. Dreher: Quantum semiconductor models.- N. Jacob, A. Potrykus: Some partial differential and pseudodifferential operatos related to random fields.- G. Mendoza: Spectral theory of elliptic cone operators.- Y. Safarov: Approximate spectral projections of the Laplacian on a Riemannian manifold.
