Some Problems on Expansion in Generalized Eigenfunctions of the Schrödinger Operator With Strongly Singular Potentials

Contents Introduction § 1. The general expansion theorem. Statement of the main results § 2. Perturbations of semigroups, approximation § 3. Schrödinger operators in the spaces L p ( R l ) § 4. Schrödinger operators in weighted L 2 -spaces § 5. Proofs of the expansion theorems References