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Spectral Analysis of Operator Polynomials and Second-Order Differential Operators.
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- Mathematical Notes, 2020, v. 108, n. 3/4, p. 477, doi. 10.1134/S0001434620090205
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Spectral Properties of the Operators <italic>AB</italic> and <italic>BA</italic>.
- Published in:
- Mathematical Notes, 2018, v. 103, n. 1/2, p. 196, doi. 10.1134/S0001434618010212
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- Article