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Asymptotics of the negative discrete spectrum of a class of Schrödinger operators with large coupling constant

We obtain the asymptotics of the negative discrete spectrum of the Schrodinger operator with a large coupling constant and potentials V ¬∈ L m/2 (R m ), m ≥ 3. The result is very sensitive to small perturbations of the potential and depends on the negative spectrum of some auxiliary differential problems on S m−1