Question

Showing that an integral operator on $L^2(0,1)$ is bounded

score 282 · Answer 1 · 2026-03-29 12:40:38

282

Views

Showing that an integral operator on $L^2(0,1)$ is bounded

Published on 29 Mar 2026 - 12:40

score 29 · Answer 2 · 2026-04-08 09:02:24

29

Views

How do I take the norm of terms in the given sequence?

Published on 08 Apr 2026 - 9:02

score 61 · Answer 3 · 2026-04-08 03:36:17

61

Views

$p$-norm inequality (hypercontractivity)

Published on 08 Apr 2026 - 3:36

score 3.8k · Answer 4 · 2026-03-29 04:48:55

3.8k

Views

Minimizing linear least squares using Lagrangian $L(\mathbf{x}, \lambda) = f(\mathbf{x}) + \lambda (\mathbf{x}^T \mathbf{x} - 1)$

Published on 29 Mar 2026 - 4:48

score 59 · Answer 5 · 2020-01-27 18:38:11

59

Views

Center of a set

Published on 27 Jan 2020 - 18:38

score 41 · Answer 6 · 2026-04-02 04:14:33

41

Views

Showing that $Λx = x$ is a continuous operator

Published on 02 Apr 2026 - 4:14

score 3.1k · Answer 7 · 2026-03-26 08:04:33

3.1k

Views

Moore-Penrose pseudoinverse and the Euclidean norm

Published on 26 Mar 2026 - 8:04

score 150 · Answer 8 · 2026-03-25 06:29:18

150

Views

If conjugation by a matrix preserves the matrix norm then the matrix must be conformal?

Published on 25 Mar 2026 - 6:29

score 29 · Answer 9 · 2026-04-08 21:49:38

29

Views

Calculating the $L_{\infty}$ regressionin Matlab

Published on 08 Apr 2026 - 21:49

score 42 · Answer 10 · 2026-04-02 04:15:12

42

Views

If $M_g : f \to gf$ from $L^p(\Omega,\mu)$ into itself , show $\|M_g\|=\|g\|_{L^\infty}$

Published on 02 Apr 2026 - 4:15

score 320 · Answer 11 · 2026-04-02 05:58:31

320

Views

Example of unbounded linear operator on space of sequences $C_{00}$

Published on 02 Apr 2026 - 5:58

score 119 · Answer 12 · 2020-01-28 22:45:40

119

Views

How would one prove, or disprove, that as $n$ goes to $0$, the curve described by $x^n + y^n = 2$ approaches that of $xy = 1$?

Published on 28 Jan 2020 - 22:45

score 592 · Answer 13 · 2026-03-29 23:45:03

592

Views

Questions about norm of $\mathbf{x}$ when minimizing squared norm of $\mathbf{A} \mathbf{x} - \mathbf{b}$

Published on 29 Mar 2026 - 23:45

score 40 · Answer 14 · 2026-03-29 14:25:05

40

Views

Proof of $ \|A\sum_{i=1}^{k-1}x_i\| \leq \|A^{1/2}\|\|\sum_{i=1}^{k-1}x_i\|_{A}$ with $A$ positive definite matrix and $x \in \mathbb{R}^d$

Published on 29 Mar 2026 - 14:25

score 55 · Answer 15 · 2020-01-31 06:29:49

55

Views

Prove that $\lim\limits_{n\to \infty} ⟨k_n, m_n⟩ = ⟨c, d⟩$.

Published on 31 Jan 2020 - 6:29

List Question

Showing that an integral operator on $L^2(0,1)$ is bounded

How do I take the norm of terms in the given sequence?

$p$-norm inequality (hypercontractivity)

Minimizing linear least squares using Lagrangian $L(\mathbf{x}, \lambda) = f(\mathbf{x}) + \lambda (\mathbf{x}^T \mathbf{x} - 1)$

Center of a set

Showing that $Λx = x$ is a continuous operator

Moore-Penrose pseudoinverse and the Euclidean norm

If conjugation by a matrix preserves the matrix norm then the matrix must be conformal?

Calculating the $L_{\infty}$ regressionin Matlab

If $M_g : f \to gf$ from $L^p(\Omega,\mu)$ into itself , show $\|M_g\|=\|g\|_{L^\infty}$

Example of unbounded linear operator on space of sequences $C_{00}$

How would one prove, or disprove, that as $n$ goes to $0$, the curve described by $x^n + y^n = 2$ approaches that of $xy = 1$?

Questions about norm of $\mathbf{x}$ when minimizing squared norm of $\mathbf{A} \mathbf{x} - \mathbf{b}$

Proof of $ \|A\sum_{i=1}^{k-1}x_i\| \leq \|A^{1/2}\|\|\sum_{i=1}^{k-1}x_i\|_{A}$ with $A$ positive definite matrix and $x \in \mathbb{R}^d$

Prove that $\lim\limits_{n\to \infty} ⟨k_n, m_n⟩ = ⟨c, d⟩$.

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