List questions from operator-algebras

Published on 27 Mar 2026 - 14:59

92

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infinite direct sum of isometries

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125

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Does $\|\cdot\|$ in a general Banach $\ast$ Algebra preserve order?

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60

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Noncommutative geometry (Notation)

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79

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Closed range of $I-A$ for bounded operators

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529

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Do Eigenvectors of an unbounded operator form a complete basis?

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80

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Restriction mapping and banach algebra

Published on 27 Mar 2026 - 11:24

481

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Atomic von Neumann algebras

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487

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$L^2$ Space of the Unit Circle and Bilateral Shift

Published on 25 Feb 2020 - 17:04

541

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Question on the definition of the direct sum of $C^*$ algebras: Why $c_0$-sum and not $l^\infty$-sum?

Published on 27 Mar 2026 - 19:33

45

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Examples of this $C^*$ Algebra

Published on 02 Mar 2020 - 15:20

79

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If we have $0\leq A \leq B$ for matrices $A$ and $B$, must $A$ and $B$ commute?

Published on 03 Mar 2020 - 0:57

245

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Left Invertibility Implies Right Invertibility in Certain $C^*$-algebras

Published on 03 Mar 2020 - 1:05

115

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Existance of certain derivations on the Temperley-Lieb algebra:

Published on 27 Feb 2026 - 16:23

89

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Describe the closure of operator S

Published on 27 Mar 2026 - 7:13

List Question

Why is a completely additive isomorphism of Von-Neumann Algebras ultraweakly continuous?

infinite direct sum of isometries

Does $\|\cdot\|$ in a general Banach $\ast$ Algebra preserve order?

Noncommutative geometry (Notation)

Closed range of $I-A$ for bounded operators

Do Eigenvectors of an unbounded operator form a complete basis?

Restriction mapping and banach algebra

Atomic von Neumann algebras

$L^2$ Space of the Unit Circle and Bilateral Shift

Question on the definition of the direct sum of $C^*$ algebras: Why $c_0$-sum and not $l^\infty$-sum?

Examples of this $C^*$ Algebra

If we have $0\leq A \leq B$ for matrices $A$ and $B$, must $A$ and $B$ commute?

Left Invertibility Implies Right Invertibility in Certain $C^*$-algebras

Existance of certain derivations on the Temperley-Lieb algebra:

Describe the closure of operator S

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