List questions from projection-matrices

Published on 03 Mar 2022 - 7:49

164

Views

$\ell_1$ norm of random projection

Published on 28 Mar 2026 - 16:04

2k

Views

Singular Values of Projection matrix

Published on 18 Mar 2022 - 18:31

58

Views

Why does acting as the inverse on a subspace guarantee commutativity?

Published on 26 Mar 2022 - 16:22

132

Views

Unitary operator times projection operator

Published on 27 Mar 2026 - 1:43

72

Views

a projective geometry question

Published on 31 Mar 2022 - 11:39

127

Views

Understanding orthogonal projection of $\vec{y}$ on to span of orthogonal set, with an example

Published on 01 Apr 2022 - 8:46

367

Views

SVD of an orthogonal projector

Published on 02 Apr 2022 - 17:44

550

Views

Prove: affine transformation maps "line at infinity" to "line at infinity"

Published on 27 Mar 2026 - 7:49

59

Views

When does $PAP = (Q \otimes R) A (Q \otimes R)$ imply $P$ is a tensor product, for orthogonal projections $P$, $Q$, and $R$?

Published on 05 Apr 2022 - 21:21

261

Views

Deriving projection matrix $QQ^Tb=\hat b$ from normal equation

Published on 26 Mar 2026 - 10:58

149

Views

SDP problem with Schur complement-like constraint

Published on 26 Mar 2026 - 17:51

70

Views

Eigenvalues of $AA^T$ if $A^T A=I_r$

Published on 15 Apr 2022 - 2:06

70

Views

Orthogonal project of a vector $\vec{y}$ that sit in the same plane (aka span($u_1, u_2$)) such that $\vec{y},\vec{u_1}, \vec{u_2} \in \mathbb{R^3}$

Published on 19 Apr 2022 - 2:03

383

Views

Orthogonal projection of an ellipsoïd from N to 2 dimensional space

Published on 26 Mar 2026 - 8:03

List Question

Prove rank $I - uu^* = n-1$ (using ... row reduction?)

$\ell_1$ norm of random projection

Singular Values of Projection matrix

Why does acting as the inverse on a subspace guarantee commutativity?

Unitary operator times projection operator

a projective geometry question

Understanding orthogonal projection of $\vec{y}$ on to span of orthogonal set, with an example

SVD of an orthogonal projector

Prove: affine transformation maps "line at infinity" to "line at infinity"

When does $PAP = (Q \otimes R) A (Q \otimes R)$ imply $P$ is a tensor product, for orthogonal projections $P$, $Q$, and $R$?

Deriving projection matrix $QQ^Tb=\hat b$ from normal equation

SDP problem with Schur complement-like constraint

Eigenvalues of $AA^T$ if $A^T A=I_r$

Orthogonal project of a vector $\vec{y}$ that sit in the same plane (aka span($u_1, u_2$)) such that $\vec{y},\vec{u_1}, \vec{u_2} \in \mathbb{R^3}$

Orthogonal projection of an ellipsoïd from N to 2 dimensional space

Trending Questions

Popular # Hahtags

Popular Questions