List questions from absolute-value

Published on 04 Dec 2018 - 2:50

99

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What's the better proof for $|a| - |b|$ $\leq$ $|a - b|$

Published on 04 Dec 2018 - 4:56

279

Views

How to show that $\left| \Gamma \left(x + iy \right) \right|^{2} \approx (\pi y^{(2x - 1)}) /(\cosh(\pi y))$?

Published on 05 Dec 2018 - 1:04

7.5k

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Integral absolute value proof

Published on 08 Dec 2018 - 12:00

340

Views

Valuation of the p adic logarithm

Published on 25 Mar 2026 - 11:22

36

Views

Absolute value less than some value

Published on 12 Dec 2018 - 23:21

527

Views

Let $f (z) = u+iv$ be an analytic function, then show that $ (∂^2/∂x^2 + ∂^2/∂y^2)|f(z)|^2 = 4|f'(z)|^2 $.

Published on 13 Dec 2018 - 8:19

241

Views

Idempotence of absolute value: how to show $\big| |a| \big| = |a|$?

Published on 14 Dec 2018 - 17:23

41

Views

How to find absolute mininum/maximum of a function on a set?

Published on 15 Dec 2018 - 15:39

3.1k

Views

Inverse of absolute value function?

Published on 17 Dec 2018 - 18:48

596

Views

What's the different between necessary, sufficient, necessary and sufficient condition?

Published on 25 Mar 2026 - 3:34

53

Views

Is there a bound for $|a+b|$ of the form $f(a,b) \leq |a+b|$

Published on 18 Dec 2018 - 17:25

42

Views

Absolute Value Inequalities Analytical Approach

Published on 19 Dec 2018 - 1:09

772

Views

Absolute Value and Exponents

Published on 19 Dec 2018 - 16:27

257

Views

Absolute value in indefinite integral

Published on 21 Dec 2018 - 8:53

List Question

Transforming absolute-value sign to plus-minus sign

What's the better proof for $|a| - |b|$ $\leq$ $|a - b|$

How to show that $\left| \Gamma \left(x + iy \right) \right|^{2} \approx (\pi y^{(2x - 1)}) /(\cosh(\pi y))$?

Integral absolute value proof

Valuation of the p adic logarithm

Absolute value less than some value

Let $f (z) = u+iv$ be an analytic function, then show that $ (∂^2/∂x^2 + ∂^2/∂y^2)|f(z)|^2 = 4|f'(z)|^2 $.

Idempotence of absolute value: how to show $\big| |a| \big| = |a|$?

How to find absolute mininum/maximum of a function on a set?

Inverse of absolute value function?

What's the different between necessary, sufficient, necessary and sufficient condition?

Is there a bound for $|a+b|$ of the form $f(a,b) \leq |a+b|$

Absolute Value Inequalities Analytical Approach

Absolute Value and Exponents

Absolute value in indefinite integral

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