List questions from orthonormal

Published on 15 May 2018 - 21:01

410

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Inner product - orthogonal basis

Published on 19 May 2018 - 13:51

3.1k

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Explicit Countable Orthonormal Basis for $L^2(\mathbb{R})$

Published on 25 Mar 2026 - 8:03

508

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orthogonal projection by matrices

Published on 20 May 2018 - 6:48

1.7k

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Finding Eigenvalues with Variable Matrix

Published on 24 May 2018 - 3:03

98

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Prove orthornormal set is a basis

Published on 24 May 2018 - 16:07

69

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Matrix existence problem

Published on 25 Mar 2026 - 7:38

972

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Orthonormal diagonalizable

Published on 25 Mar 2026 - 6:26

249

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Expressing a vector in terms of vectors from orthonormal bases.

Published on 31 May 2018 - 19:53

41

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Determining whether a matrix is unitary when given its eigenspaces

Published on 06 Jun 2018 - 12:03

161

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Counterexample(?) of the theorem An Orthonormal basis of a vector space X is a Hamel basis if and only if X is finite dimensional.

Published on 25 Mar 2026 - 0:04

45

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$A:H \to H$, $Ax = \sum_{n=1}^{\infty} s_{n} \langle x, e_{n} \rangle f_{n}$, $s_{n} \searrow 0$, $e_{n}$, $f_{n}$ orthonormal bases of H

Published on 09 Jun 2018 - 19:15

211

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Are there any complete orthogonal basis functions inside unit sphere?

Published on 24 Mar 2026 - 22:17

160

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$L_{1,1}$-norm and orthonormal matrices

Published on 11 Jun 2018 - 12:11

192

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$L_1$ norm of matrix and $L_{1,1}$ norm of multiplication with orthogonal matrix

Published on 12 Jun 2018 - 12:43

List Question

Orthonormal basis proof on $L_{2}[a, b]^{2}$ through Parseval's identity

Inner product - orthogonal basis

Explicit Countable Orthonormal Basis for $L^2(\mathbb{R})$

orthogonal projection by matrices

Finding Eigenvalues with Variable Matrix

Prove orthornormal set is a basis

Matrix existence problem

Orthonormal diagonalizable

Expressing a vector in terms of vectors from orthonormal bases.

Determining whether a matrix is unitary when given its eigenspaces

Counterexample(?) of the theorem An Orthonormal basis of a vector space X is a Hamel basis if and only if X is finite dimensional.

$A:H \to H$, $Ax = \sum_{n=1}^{\infty} s_{n} \langle x, e_{n} \rangle f_{n}$, $s_{n} \searrow 0$, $e_{n}$, $f_{n}$ orthonormal bases of H

Are there any complete orthogonal basis functions inside unit sphere?

$L_{1,1}$-norm and orthonormal matrices

$L_1$ norm of matrix and $L_{1,1}$ norm of multiplication with orthogonal matrix

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