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Banach spaces, function spaces, real functions, integral transforms, theory of distributions, measure theory.

2 votes
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321 views

Ideal spanned by matrix units isomorphic to compact operators

Hello, Assume we have $(n+1)$ isometries $S_1,...,S_{n+1}$ in the separable Hilbert space $H$ with the properties that $\sum_{i=1}^{n+1}S_iS_i^*=I, S_i^*S_j=0$ (i.e. $S_i$ are the generators of the C …