%0 Journal Article %T On Schoedinger operators with multipolar inverse-square potentials %A Veronica Felli %A Elsa M. Marchini %A Susanna Terracini %J Mathematics %D 2006 %I arXiv %X Positivity, essential self-adjointness, and spectral properties of a class of Schroedinger operators with multipolar inverse-square potentials are discussed. In particular a necessary and sufficient condition on the masses of singularities for the existence of at least a configuration of poles ensuring the positivity of the associated quadratic form is established. %U http://arxiv.org/abs/math/0602209v6