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Results tagged with operator-theory
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user 267190
Spectrum, resolvent, numerical range, functional calculus, operator semigroups. Special classes of operators: compact, Fredholm, dissipative, differential, integral, pseudodifferential, etc.
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Self-adjointness of an operator
This is a problem from page 3 of Bourgain, Burq, and Zworski - Control for Schrödinger equations on 2-tori: rough potentials, the author claim that
Hence $P = - \partial_x^2 + W$ defined on $C^\infty …
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