Abstract
Selfadjoint extensions of symmetric operators with infinite deficiency indices are discussed. In particular the operators describing the system of several quantum particles with generalized point interactions are investigated in detail and a few-body analog of Krein’s formula for generalized resolvents is proven. New conditions for semiboundedness of M-body quantum Hamiltonian with generalized point interactions in the three-dimensional space are derived.
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Kurasov, P., Pavlov, B. (2000). Few-body Krein’s Formula. In: Adamyan, V.M., et al. Operator Theory and Related Topics. Operator Theory: Advances and Applications, vol 118. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8413-6_13
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DOI: https://doi.org/10.1007/978-3-0348-8413-6_13
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