List questions from operator-theory

Published on 26 Mar 2026 - 8:31

359

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Measurable Operators

Published on 10 Nov 2018 - 21:39

352

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finite rank projection

Published on 26 Mar 2026 - 7:31

32

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Proving that $|x^*(x)| \leq \rho(x,Y)$

Published on 25 Mar 2026 - 6:55

113

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Operator Norm Question

Published on 12 Nov 2018 - 13:25

71

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How to show non existence of an operator $A: V \to V^*$

Published on 27 Mar 2026 - 18:09

42

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$T$ has not a closed range

Published on 12 Nov 2018 - 17:44

538

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orthogonal projections in $C^*$ algebra

Published on 26 Mar 2026 - 8:31

343

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spectral properties of the shift operator

Published on 26 Mar 2026 - 7:43

147

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Compact operators on $\ell^1$

Published on 25 Mar 2026 - 12:52

99

Views

pairwise orthogonal projections in an inseparable $C^* $ algebra

Published on 26 Mar 2026 - 9:26

64

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Hypercyclic operators in $L_p (0,\infty)$

Published on 25 Mar 2026 - 9:25

526

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Value of operator norm when $\mathcal{T}f(x)=\int^{x}_{0} f(t)dt$

Published on 14 Nov 2018 - 2:06

56

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What's exactly meant if one is saying that the closure of a multivalued operator is the generator of a $C^0$-semigroup?

Published on 25 Mar 2026 - 6:06

29

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Is the set $\overline{\langle \{ f^{*}_{1}f_2: f_1,f_2\in J\}\rangle } $ equal to $B(\ell^2)$?

Published on 27 Mar 2026 - 6:34

List Question

a question on gns construction

Measurable Operators

finite rank projection

Proving that $|x^*(x)| \leq \rho(x,Y)$

Operator Norm Question

How to show non existence of an operator $A: V \to V^*$

$T$ has not a closed range

orthogonal projections in $C^*$ algebra

spectral properties of the shift operator

Compact operators on $\ell^1$

pairwise orthogonal projections in an inseparable $C^* $ algebra

Hypercyclic operators in $L_p (0,\infty)$

Value of operator norm when $\mathcal{T}f(x)=\int^{x}_{0} f(t)dt$

What's exactly meant if one is saying that the closure of a multivalued operator is the generator of a $C^0$-semigroup?

Is the set $\overline{\langle \{ f^{*}_{1}f_2: f_1,f_2\in J\}\rangle } $ equal to $B(\ell^2)$?

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