Question

Searching two matrix A and B, such that exp(A+B)=exp(A)exp(B) but AB is not equal to BA.

score 1.9k · Answer 1 · 2014-07-28 00:57:30

1.9k

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Searching two matrix A and B, such that exp(A+B)=exp(A)exp(B) but AB is not equal to BA.

Published on 28 Jul 2014 - 0:57

score 87 · Answer 2 · 2014-08-30 20:30:06

87

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Help with functional integral

Published on 30 Aug 2014 - 20:30

score 1.9k · Answer 3 · 2014-10-10 18:22:17

1.9k

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Functional derivatives in (Physics) Field Theory

Published on 10 Oct 2014 - 18:22

score 193 · Answer 4 · 2014-11-01 05:10:01

193

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Please help me getting the big picture: what is this theorem for?

Published on 01 Nov 2014 - 5:10

score 256 · Answer 5 · 2014-11-03 04:01:57

256

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continuous functional calculus; spectrum of an self adjoint element in a c*algebra

Published on 03 Nov 2014 - 4:01

score 392 · Answer 6 · 2019-10-07 12:09:06

392

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More direct proof for $\sigma(T) \subset{\overline{W(T)}}$ (numerical range contains spectrum)

Published on 07 Oct 2019 - 12:09

score 485 · Answer 7 · 2019-10-12 00:43:58

485

Views

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Published on 12 Oct 2019 - 0:43

score 119 · Answer 8 · 2019-10-12 12:40:33

119

Views

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score 27 · Answer 9 · 2019-10-13 01:33:25

27

Views

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Published on 13 Oct 2019 - 1:33

score 48 · Answer 10 · 2019-10-14 19:06:40

48

Views

$\int_{\lambda+\varepsilon}^{+\infty}{d||E_{t}v||^{2}}=0$ implies $v\in \text{Im}1_{\{\lambda\}}(H)$

Published on 14 Oct 2019 - 19:06

score 53 · Answer 11 · 2019-10-26 17:33:54

53

Views

Borel functional calculus for some spectial operators

Published on 26 Oct 2019 - 17:33

score 54 · Answer 12 · 2019-11-01 16:24:41

54

Views

What is the most general solution of the following functional equations?

Published on 01 Nov 2019 - 16:24

score 125 · Answer 13 · 2019-11-10 16:31:27

125

Views

Understanding the definition of $f(T)$ of functional Calculus

Published on 10 Nov 2019 - 16:31

score 62 · Answer 14 · 2019-11-11 19:01:06

62

Views

Why is $f(T)x=\frac{1}{2\pi i}\oint f(z)(z-T)^{-1}x \ dz$?

Published on 11 Nov 2019 - 19:01

score 28 · Answer 15 · 2019-11-17 17:21:16

28

Views

Find min-max and concavity when first derivative is a Transcendental Function

Published on 17 Nov 2019 - 17:21

List Question

Searching two matrix A and B, such that exp(A+B)=exp(A)exp(B) but AB is not equal to BA.

Help with functional integral

Functional derivatives in (Physics) Field Theory

Please help me getting the big picture: what is this theorem for?

continuous functional calculus; spectrum of an self adjoint element in a c*algebra

More direct proof for $\sigma(T) \subset{\overline{W(T)}}$ (numerical range contains spectrum)

Question on proof of the spectral mapping theorem for self-adjoint operators

Continuous functional calculus of two commutative opertors

Differentiable probability distribution on $\mathbb{R}$ with the minimim variance

$\int_{\lambda+\varepsilon}^{+\infty}{d||E_{t}v||^{2}}=0$ implies $v\in \text{Im}1_{\{\lambda\}}(H)$

Borel functional calculus for some spectial operators

What is the most general solution of the following functional equations?

Understanding the definition of $f(T)$ of functional Calculus

Why is $f(T)x=\frac{1}{2\pi i}\oint f(z)(z-T)^{-1}x \ dz$?

Find min-max and concavity when first derivative is a Transcendental Function

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