List questions from maxima-minima

Published on 14 Apr 2026 - 13:09

75

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Minimize $\dfrac{x^2+1}{x^2(1-x)(x+3)}$ on $(0,1)$

Published on 15 Apr 2026 - 21:37

97

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Derivative of $\left(\frac{\sqrt{8|x|}\sin^2 x}{\cos x}\right)^{\operatorname{erf}(x)}$

Published on 16 Apr 2026 - 23:16

446

Views

Prove the existence and uniqueness of a global minimum for a quadratic function $q(x)$ with positive definite Hessian

Published on 17 Apr 2026 - 3:47

34

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Finding a minimun by using ellipticity (optimization methods)

Published on 09 Apr 2026 - 21:21

528

Views

Steepest descent (gradient method) for quadratic function

Published on 15 Apr 2026 - 10:12

44

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Property involving Maximum and Absolute Value function

Published on 11 Apr 2026 - 13:05

158

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maxima and minima for a boundary value problem

Published on 12 Apr 2026 - 16:20

69

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Is there a such thing called the "Classic Convergence Theorem"?

Published on 13 Apr 2026 - 8:19

56

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Check my proof: Showing how $\frac{c-a}{d-b}$ compares to $\min(\frac{a}{b},\frac{c}{d})$ and $\max(\frac{a}{b},\frac{c}{d})$

Published on 15 Apr 2026 - 9:18

85

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Find maximum points of a integral function

Published on 12 Apr 2026 - 3:23

25

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Semi-definite derivative with no local extremum

Published on 14 Apr 2026 - 14:59

966

Views

Proof: Sum of minimum of two functions vs minimum of sum of functions

Published on 17 Apr 2026 - 9:44

164

Views

$\max_x\max_yf(x,y)=\max_{x,y}f(x,y)$. Then, $\arg\max_x\arg\max_yf(x,y)=?$

Published on 15 Apr 2026 - 20:50

103

Views

does this function have max/min?

Published on 11 Apr 2026 - 18:49

List Question

Minimum of $\frac{1}{x}+\frac{1}{y}+\frac{1}{z}$ for $x,y,z\in{\mathbb{R^+}}$

Minimize $\dfrac{x^2+1}{x^2(1-x)(x+3)}$ on $(0,1)$

Derivative of $\left(\frac{\sqrt{8|x|}\sin^2 x}{\cos x}\right)^{\operatorname{erf}(x)}$

Prove the existence and uniqueness of a global minimum for a quadratic function $q(x)$ with positive definite Hessian

Finding a minimun by using ellipticity (optimization methods)

Steepest descent (gradient method) for quadratic function

Property involving Maximum and Absolute Value function

maxima and minima for a boundary value problem

Is there a such thing called the "Classic Convergence Theorem"?

Check my proof: Showing how $\frac{c-a}{d-b}$ compares to $\min(\frac{a}{b},\frac{c}{d})$ and $\max(\frac{a}{b},\frac{c}{d})$

Find maximum points of a integral function

Semi-definite derivative with no local extremum

Proof: Sum of minimum of two functions vs minimum of sum of functions

$\max_x\max_yf(x,y)=\max_{x,y}f(x,y)$. Then, $\arg\max_x\arg\max_yf(x,y)=?$

does this function have max/min?

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