Question

Draw a handful of random vectors iid. Is projecting one onto the handful essentially the same as projecting one onto another?

score 82 · Answer 1 · 2026-03-27 07:17:19

82

Views

Draw a handful of random vectors iid. Is projecting one onto the handful essentially the same as projecting one onto another?

Published on 27 Mar 2026 - 7:17

score 54 · Answer 2 · 2026-03-26 17:36:17

54

Views

Question regarding the projection of a vector onto the nullspace of a matrix

Published on 26 Mar 2026 - 17:36

score 67 · Answer 3 · 2023-05-21 16:34:25

67

Views

Operator theory: nonnegative operator $Q$ less than an orthogonal projection $P$ satisfies $PQ=QP$

Published on 21 May 2023 - 16:34

score 45 · Answer 4 · 2023-05-22 11:48:45

45

Views

Help with the proof of a projection as an endomorphism with $\Vert f(v) \Vert \leq \Vert v \Vert.$

Published on 22 May 2023 - 11:48

score 62 · Answer 5 · 2023-05-23 04:50:06

62

Views

Using Hilbert projection theorem to prove properties of projection map

Published on 23 May 2023 - 4:50

score 48 · Answer 6 · 2023-05-24 10:42:38

48

Views

Is a projected subspace equivalent to a truncated subspace?

Published on 24 May 2023 - 10:42

score 35 · Answer 7 · 2023-05-24 18:39:25

35

Views

Projection on the intersection of given sets

Published on 24 May 2023 - 18:39

score 168 · Answer 8 · 2026-03-27 10:10:05

168

Views

Extract Spherical coordinates of panorama from camera pose information and panorama (+pixel) size for correct position in a 3D space.

Published on 27 Mar 2026 - 10:10

score 191 · Answer 9 · 2023-05-26 07:57:44

191

Views

Let $V$ an inner product space, and $U$ a subspace of $V$. Prove $P^*_U = P_U$ (projection over U).

Published on 26 May 2023 - 7:57

score 55 · Answer 10 · 2023-05-26 14:25:19

55

Views

Showing $\|P_E\psi\|^2\geq\frac{3}{4}$ if $\|\psi\|=1,\exists\lambda\in\mathbb{R}:\|T\psi-\lambda\psi\|\leq C$ for an unbounded linear operator $T$

Published on 26 May 2023 - 14:25

score 30 · Answer 11 · 2023-05-29 23:41:18

30

Views

Proving that a subset of a Hilbert space is convex and closed

Published on 29 May 2023 - 23:41

score 35 · Answer 12 · 2026-03-26 03:09:43

35

Views

self-adjoint projection

Published on 26 Mar 2026 - 3:09

score 18 · Answer 13 · 2023-06-07 14:59:01

18

Views

Average of a factor over $\phi$ and $\lambda$

Published on 07 Jun 2023 - 14:59

score 12 · Answer 14 · 2026-02-27 14:28:37

12

Views

What is the name of the projection from ND->2D on the $\vec{1}$ plane, which equally spaces the basis vectors?

Published on 27 Feb 2026 - 14:28

score 36 · Answer 15 · 2023-06-14 17:29:29

36

Views

Orthogonal projections and Orthogonal Complements

Published on 14 Jun 2023 - 17:29

List Question

Draw a handful of random vectors iid. Is projecting one onto the handful essentially the same as projecting one onto another?

Question regarding the projection of a vector onto the nullspace of a matrix

Operator theory: nonnegative operator $Q$ less than an orthogonal projection $P$ satisfies $PQ=QP$

Help with the proof of a projection as an endomorphism with $\Vert f(v) \Vert \leq \Vert v \Vert.$

Using Hilbert projection theorem to prove properties of projection map

Is a projected subspace equivalent to a truncated subspace?

Projection on the intersection of given sets

Extract Spherical coordinates of panorama from camera pose information and panorama (+pixel) size for correct position in a 3D space.

Let $V$ an inner product space, and $U$ a subspace of $V$. Prove $P^*_U = P_U$ (projection over U).

Showing $\|P_E\psi\|^2\geq\frac{3}{4}$ if $\|\psi\|=1,\exists\lambda\in\mathbb{R}:\|T\psi-\lambda\psi\|\leq C$ for an unbounded linear operator $T$

Proving that a subset of a Hilbert space is convex and closed

self-adjoint projection

Average of a factor over $\phi$ and $\lambda$

What is the name of the projection from ND->2D on the $\vec{1}$ plane, which equally spaces the basis vectors?

Orthogonal projections and Orthogonal Complements

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