List questions from orthogonality

Published on 22 Mar 2026 - 13:51

74

Views

Orthogonality of dot product is applicable only in $\mathbb{R}^3$ and $\mathbb{R}^7$

Published on 03 Sep 2019 - 15:41

50

Views

Problem on othogonal polynomials with Lebesgue mesure

Published on 25 Mar 2026 - 6:39

1.6k

Views

Finding the associated matrix to an orthogonal projection

Published on 26 Mar 2026 - 17:18

743

Views

Proving that $M^{\perp} = M^{\perp\perp\perp}$

Published on 05 Sep 2019 - 19:29

300

Views

If $A^TA = B^TB$ where $B$ is non-square, does $\exists$ matrix $P$ such that $A=PB$?

Published on 06 Sep 2019 - 11:01

1.8k

Views

Find the dot product of orthogonal unit vectors u, v; and w = au + bv

Published on 07 Sep 2019 - 15:34

213

Views

Symbolic representation of orthogonality/independence in proofs

Published on 13 Sep 2019 - 19:08

341

Views

Counterexample to $\mathcal{H} = M \oplus M^{\perp}$ where $M$ not closed, $\mathcal{H}$ Hilbert

Published on 17 Sep 2019 - 0:38

64

Views

Can a generalization of the Hermite function-like "basis" $φ_n(x) = D^n \exp(-x^2/2)$ be orthonormal in $L^2$?

Published on 25 Mar 2026 - 3:21

705

Views

Relationship between orthogonal complements of subspaces

Published on 18 Sep 2019 - 1:46

372

Views

Commuting Orthogonal Projections on Hilbert Space

Published on 26 Mar 2026 - 7:49

85

Views

Does such a matrix have to be orthogonal?

Published on 26 Mar 2026 - 21:08

81

Views

How to find the basis of $\textsf V$ and for $\textsf{V}^\perp$?

Published on 23 Sep 2019 - 16:15

36

Views

Finding the orthogonal vector of two 1 by 5 vector

Published on 26 Mar 2026 - 19:16

List Question

How to score the orthogonality between two matrix?

Orthogonality of dot product is applicable only in $\mathbb{R}^3$ and $\mathbb{R}^7$

Problem on othogonal polynomials with Lebesgue mesure

Finding the associated matrix to an orthogonal projection

Proving that $M^{\perp} = M^{\perp\perp\perp}$

If $A^TA = B^TB$ where $B$ is non-square, does $\exists$ matrix $P$ such that $A=PB$?

Find the dot product of orthogonal unit vectors u, v; and w = au + bv

Symbolic representation of orthogonality/independence in proofs

Counterexample to $\mathcal{H} = M \oplus M^{\perp}$ where $M$ not closed, $\mathcal{H}$ Hilbert

Can a generalization of the Hermite function-like "basis" $φ_n(x) = D^n \exp(-x^2/2)$ be orthonormal in $L^2$?

Relationship between orthogonal complements of subspaces

Commuting Orthogonal Projections on Hilbert Space

Does such a matrix have to be orthogonal?

How to find the basis of $\textsf V$ and for $\textsf{V}^\perp$?

Finding the orthogonal vector of two 1 by 5 vector

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