Question

Is the $\sigma$-algebra of measurable sets a maximal family to which the lenght can be extended without losing its properties?

score 201 · Answer 1 · 2026-04-14 23:29:12

201

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Is the $\sigma$-algebra of measurable sets a maximal family to which the lenght can be extended without losing its properties?

Published on 14 Apr 2026 - 23:29

score 217 · Answer 2 · 2026-04-12 15:52:48

217

Views

Problem about continuous functions and the intermediate value theorem

Published on 12 Apr 2026 - 15:52

score 111 · Answer 3 · 2026-04-16 16:53:19

111

Views

Integrate $\int_{-\infty}^{-1}\frac{e^x-e^{-x}}{1-e^{-2x}}dx$

Published on 16 Apr 2026 - 16:53

score 55 · Answer 4 · 2026-04-11 16:58:20

55

Views

Problem about Continuous Functions. Check my resolution, please!

Published on 11 Apr 2026 - 16:58

score 3.6k · Answer 5 · 2026-04-13 18:15:35

3.6k

Views

Bijective local diffeomorphism is a diffeomorphism

Published on 13 Apr 2026 - 18:15

score 399 · Answer 6 · 2026-04-15 21:32:19

399

Views

Local coordinate systems in Guillemin and Pollack

Published on 15 Apr 2026 - 21:32

score 1.3k · Answer 7 · 2026-04-16 20:09:42

1.3k

Views

The dual function g is concave, even when the initial problem is not convex?

Published on 16 Apr 2026 - 20:09

score 80 · Answer 8 · 2026-04-17 13:30:25

80

Views

Limit of a standard dissection

Published on 17 Apr 2026 - 13:30

score 96 · Answer 9 · 2026-04-18 08:09:17

96

Views

Calculating Signed Curvature in $R^n$

Published on 18 Apr 2026 - 8:09

score 264 · Answer 10 · 2026-04-12 11:31:47

264

Views

Different proof of the Plancherel Formula in $L^2(\mathbb R).$

Published on 12 Apr 2026 - 11:31

score 160 · Answer 11 · 2026-04-16 00:03:15

160

Views

Double sequence convergent iff all of its subsequence converge?

Published on 16 Apr 2026 - 0:03

score 67 · Answer 12 · 2026-04-13 22:47:03

67

Views

Why do I get a contradiction for this proof a sequence is decreasing?

Published on 13 Apr 2026 - 22:47

score 83 · Answer 13 · 2026-04-18 15:27:24

83

Views

Differential operator is linear

Published on 18 Apr 2026 - 15:27

score 77 · Answer 14 · 2026-04-16 04:19:51

77

Views

I'm stumped with the convergence/divergence of this unusual looking series

Published on 16 Apr 2026 - 4:19

score 124 · Answer 15 · 2026-04-16 12:18:14

124

Views

Is $f(x)=\sum_{n=1}^{\infty} \frac{1}{n}\sin\left(\frac{x}{n}\right)$ bounded?

Published on 16 Apr 2026 - 12:18

List Question

Is the $\sigma$-algebra of measurable sets a maximal family to which the lenght can be extended without losing its properties?

Problem about continuous functions and the intermediate value theorem

Integrate $\int_{-\infty}^{-1}\frac{e^x-e^{-x}}{1-e^{-2x}}dx$

Problem about Continuous Functions. Check my resolution, please!

Bijective local diffeomorphism is a diffeomorphism

Local coordinate systems in Guillemin and Pollack

The dual function g is concave, even when the initial problem is not convex?

Limit of a standard dissection

Calculating Signed Curvature in $R^n$

Different proof of the Plancherel Formula in $L^2(\mathbb R).$

Double sequence convergent iff all of its subsequence converge?

Why do I get a contradiction for this proof a sequence is decreasing?

Differential operator is linear

I'm stumped with the convergence/divergence of this unusual looking series

Is $f(x)=\sum_{n=1}^{\infty} \frac{1}{n}\sin\left(\frac{x}{n}\right)$ bounded?

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