List questions from projection

Published on 25 Mar 2026 - 3:24

43

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Projection map from projective space is not well defined?

Published on 14 Apr 2019 - 5:37

234

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Matrix of a non-orthogonal projection and idempotence

Published on 14 Apr 2019 - 14:31

84

Views

Let $P ⊆ X ×Y$. Does $π_1(P)×π_2(P) = P$? Give a proof or a counterexample.

Published on 16 Apr 2019 - 0:52

380

Views

Understanding the orthogonal projection vector derivation

Published on 16 Apr 2019 - 4:13

334

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Orthogonal Projection in Hilbert Space to prove weak convergence

Published on 25 Mar 2026 - 12:53

186

Views

Projection map for polynomial rings

Published on 17 Apr 2019 - 18:04

315

Views

How to show $\text{rank}(p)=\text{trace}(p)$ for every projector $p$ defined on $\mathbb{R}^n$?

Published on 22 Apr 2019 - 4:17

57

Views

Best linear prediction as a projection in a Hilbert space $L^2$

Published on 22 Apr 2019 - 19:49

7.7k

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Component-Wise 3D Vector Projection

Published on 24 Apr 2019 - 16:32

478

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Computing projection onto the following closed convex set

Published on 24 Apr 2019 - 17:25

396

Views

Math notation to define the operator that extract component of a vector?

Published on 25 Apr 2019 - 1:53

47

Views

what's spectral axiom

Published on 25 Apr 2019 - 3:36

148

Views

Inequality on pairs of projections in Kato's book

Published on 25 Mar 2026 - 11:14

477

Views

Derivative of a function including Euclidean projection?

Published on 30 Apr 2019 - 16:10

List Question

Is a von Neumann algebra a closed linear span of pairwise orthogonal projections?

Projection map from projective space is not well defined?

Matrix of a non-orthogonal projection and idempotence

Let $P ⊆ X ×Y$. Does $π_1(P)×π_2(P) = P$? Give a proof or a counterexample.

Understanding the orthogonal projection vector derivation

Orthogonal Projection in Hilbert Space to prove weak convergence

Projection map for polynomial rings

How to show $\text{rank}(p)=\text{trace}(p)$ for every projector $p$ defined on $\mathbb{R}^n$?

Best linear prediction as a projection in a Hilbert space $L^2$

Component-Wise 3D Vector Projection

Computing projection onto the following closed convex set

Math notation to define the operator that extract component of a vector?

what's spectral axiom

Inequality on pairs of projections in Kato's book

Derivative of a function including Euclidean projection?

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