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Results tagged with fa.functional-analysis
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user 10746
Banach spaces, function spaces, real functions, integral transforms, theory of distributions, measure theory.
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spectrum of the compression of a selfadjoint operator
Let T be a (unbounded) selfadjoint operator in $B(H)$, the bounded operator acting on Hilbert space $H$.
Def: A compression of T is an operator $pTp$, where $p$ is a projection in $B(H)$.
I am thin …
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