Question

Norm, Spectrum, and Adjoint of an Operator

score 131 · Answer 1 · 2026-03-27 03:41:38

131

Views

Norm, Spectrum, and Adjoint of an Operator

Published on 27 Mar 2026 - 3:41

score 61 · Answer 2 · 2026-03-26 19:20:07

61

Views

Determine $\inf_{f \in C[0,1]} \int_0^1 t^2 \mathrm{Re}f(t)dt$ subject to certain constraints

Published on 26 Mar 2026 - 19:20

score 609 · Answer 3 · 2026-04-06 00:33:46

609

Views

Counter Example to Minimal Norm Theorem for Hilbert Spaces

Published on 06 Apr 2026 - 0:33

score 35 · Answer 4 · 2026-04-01 17:25:30

35

Views

Can a parallelogram in $\mathbb R^2$ be a square in $(\mathbb R^2, (·, ·)_a)$?

Published on 01 Apr 2026 - 17:25

score 33 · Answer 5 · 2026-03-25 12:54:00

33

Views

Why is integral a proper inner product of polynomials?

Published on 25 Mar 2026 - 12:54

score 257 · Answer 6 · 2026-03-29 15:02:30

257

Views

How to perturb orientation of two 3D vectors given a dot product angle?

Published on 29 Mar 2026 - 15:02

score 592 · Answer 7 · 2019-11-29 00:31:39

592

Views

Is the square root of positive definite endomorphism of an inner product space, also positive definite?

Published on 29 Nov 2019 - 0:31

score 61 · Answer 8 · 2026-03-25 13:05:05

61

Views

Induce inner product space from set-valued metric space (symmetric difference)

Published on 25 Mar 2026 - 13:05

score 120 · Answer 9 · 2026-03-25 10:58:56

120

Views

Showing that $Tx(n)=nx(n)$ in inner-product space $l^{2}$ satisfies $(Tx,y)=(y,Tx) \ \forall x,y \in A$ yet T is unbounded

Published on 25 Mar 2026 - 10:58

score 202 · Answer 10 · 2026-03-29 11:41:32

202

Views

Quaternionic Hilbert Spaces

Published on 29 Mar 2026 - 11:41

score 73 · Answer 11 · 2026-03-26 19:23:45

73

Views

A solution without using Gram schmidt required.

Published on 26 Mar 2026 - 19:23

score 26 · Answer 12 · 2026-02-23 02:12:58

26

Views

Unsure about the definition of a mean on a locally compact group.

Published on 23 Feb 2026 - 2:12

score 141 · Answer 13 · 2019-12-02 22:36:29

141

Views

Showing that $\langle u, v \rangle = T(u)^T \hspace{1mm} T(v)$ is an inner product on $V$ for $T: V → {\Bbb R^n}$

Published on 02 Dec 2019 - 22:36

score 33 · Answer 14 · 2019-12-03 07:28:46

33

Views

If norm of a sequence of vectors diverges, does inner product too?

Published on 03 Dec 2019 - 7:28

score 124 · Answer 15 · 2026-04-04 02:13:32

124

Views

Basic Matrix Equation Manipulation (Using The Commutative Scalar-Matrix Property)

Published on 04 Apr 2026 - 2:13

List Question

Norm, Spectrum, and Adjoint of an Operator

Determine $\inf_{f \in C[0,1]} \int_0^1 t^2 \mathrm{Re}f(t)dt$ subject to certain constraints

Counter Example to Minimal Norm Theorem for Hilbert Spaces

Can a parallelogram in $\mathbb R^2$ be a square in $(\mathbb R^2, (·, ·)_a)$?

Why is integral a proper inner product of polynomials?

How to perturb orientation of two 3D vectors given a dot product angle?

Is the square root of positive definite endomorphism of an inner product space, also positive definite?

Induce inner product space from set-valued metric space (symmetric difference)

Showing that $Tx(n)=nx(n)$ in inner-product space $l^{2}$ satisfies $(Tx,y)=(y,Tx) \ \forall x,y \in A$ yet T is unbounded

Quaternionic Hilbert Spaces

A solution without using Gram schmidt required.

Unsure about the definition of a mean on a locally compact group.

Showing that $\langle u, v \rangle = T(u)^T \hspace{1mm} T(v)$ is an inner product on $V$ for $T: V → {\Bbb R^n}$

If norm of a sequence of vectors diverges, does inner product too?

Basic Matrix Equation Manipulation (Using The Commutative Scalar-Matrix Property)

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