Abstract
For a sequence of singular perturbations belonging to the H -1-class and converging to a given singular perturbation from the H -2-class, we find a method of additive regularization that guarantees the strong resolvent convergence of perturbed operators.
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Koshmanenko, V.D. Regularized approximations of singular perturbations from the h -2-class. Ukr Math J 52, 715–728 (2000). https://doi.org/10.1007/BF02487284
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DOI: https://doi.org/10.1007/BF02487284