Abstract
For operators bounded from below we show that the resolvents of the operators formed from cut-off potentials converge strongly to the operator defined by means of bilinear forms. Under further conditions we show that the resolvents converge in norm.
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Schechter, M. Cut-off potentials and forms extensions. Lett Math Phys 1, 265–273 (1976). https://doi.org/10.1007/BF00398480
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DOI: https://doi.org/10.1007/BF00398480