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Results tagged with fa.functional-analysis
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user 519419
Banach spaces, function spaces, real functions, integral transforms, theory of distributions, measure theory.
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Self-adjoint operator with pure point spectrum
Suppose that A is a self-adjoint (possible unbounded) operator from a separable Hilbert space H to itself. I would like to know if the following statement is true:
A has pure point spectrum (i.e., the …
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