Obere Schranken für Eigenfunktionen eines Operators - ... + q.
On a nonresonance condition between the first and the second eigenvalues for the -Laplacian.
On a probabilistic interpretation of shape derivatives of Dirichlet groundstates with application to Fermion nodes
This paper considers Schrödinger operators, and presents a probabilistic interpretation of the variation (or shape derivative) of the Dirichlet groundstate energy when the associated domain is perturbed. This interpretation relies on the distribution on the boundary of a stopped random process with Feynman-Kac weights. Practical computations require in addition the explicit approximation of the normal derivative of the groundstate on the boundary. We then propose to use this formulation in the...
On Cramér's theorem for general Euler products with functional equation.
On the backward heat problem: evaluation of the norm of .
On the Existence of Solutions of Certain Asymptotically Homogeneous Problems.
On the S-matrix for Schrödinger operators with long-range potentials.