List questions from hilbert-spaces

994

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Exercise 23 from chapter 4 (“Hilbert Spaces: An Introduction”) of Stein & Shakarchi's “Real Analysis”

Published on 18 Sep 2014 - 14:18

293

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Existence of minimum norm solution to linear equation $Tx =y$

Published on 18 Sep 2014 - 16:38

112

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Integration over subsets of the complex plane.

Published on 19 Sep 2014 - 3:51

807

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left regular representation of SU(2)

Published on 02 Apr 2026 - 9:31

278

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Estimating the modulus of continuity of translation in $L^2$ by a Sobolev norm of the function

Published on 01 Apr 2026 - 3:45

1.8k

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Why are "not bounded" operators not everywhere defined?

Published on 01 Apr 2026 - 3:16

278

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Spectral Measures: Integration of Product

Published on 22 Sep 2014 - 17:51

193

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Spectral Measures: Property

Published on 22 Sep 2014 - 19:47

161

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Spectral Measures: Concentration

Published on 22 Sep 2014 - 20:28

26

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Describing a Subset of a Hilbert Space $H$

Published on 23 Sep 2014 - 8:39

144

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Hilbert Spaces; eigenvalues of $PBP$ vs. $B$ for $B$ compact selfadjoint and $P$ orthoprojection.

Published on 23 Sep 2014 - 10:10

92

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Two Hilbert spaces $V \subset H$, a basis for both spaces?

Published on 24 Sep 2014 - 12:13

286

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Hilbert Spaces - an application of the minimax principle.

Published on 26 Mar 2026 - 14:20

85

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A basis of $V$ is linearly independent in $H$ where $V \subset H$ are Hilbert spaces?

Published on 24 Sep 2014 - 17:39

173

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Bounded operators with infinite matrix representations

Published on 29 Mar 2026 - 14:27

List Question

Exercise 23 from chapter 4 (“Hilbert Spaces: An Introduction”) of Stein & Shakarchi's “Real Analysis”

Existence of minimum norm solution to linear equation $Tx =y$

Integration over subsets of the complex plane.

left regular representation of SU(2)

Estimating the modulus of continuity of translation in $L^2$ by a Sobolev norm of the function

Why are "not bounded" operators not everywhere defined?

Spectral Measures: Integration of Product

Spectral Measures: Property

Spectral Measures: Concentration

Describing a Subset of a Hilbert Space $H$

Hilbert Spaces; eigenvalues of $PBP$ vs. $B$ for $B$ compact selfadjoint and $P$ orthoprojection.

Two Hilbert spaces $V \subset H$, a basis for both spaces?

Hilbert Spaces - an application of the minimax principle.

A basis of $V$ is linearly independent in $H$ where $V \subset H$ are Hilbert spaces?

Bounded operators with infinite matrix representations

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