Question

A projection not commuting with an element of a partition of unity

score 59 · Answer 1 · 2026-04-03 01:55:18

59

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A projection not commuting with an element of a partition of unity

Published on 03 Apr 2026 - 1:55

score 64 · Answer 2 · 2024-02-02 07:42:48

64

Views

Axler LADR, ex. 2.A.16

Published on 02 Feb 2024 - 7:42

score 58 · Answer 3 · 2024-02-03 00:28:55

58

Views

Check for differentiability of $|xy|$ at $(0,0)$, $(a,0)$ and $(0,b)$

Published on 03 Feb 2024 - 0:28

score 85 · Answer 4 · 2026-03-29 07:39:00

85

Views

What methods can be used to solve $y'=xy;y(0)=2$?

Published on 29 Mar 2026 - 7:39

score 97 · Answer 5 · 2024-02-05 22:03:01

97

Views

What methods can be used to solve $\int_{0}^{\infty}x^{-\ln x}dx=\sqrt{\pi\sqrt{e}}$?

Published on 05 Feb 2024 - 22:03

score 636 · Answer 6 · 2024-02-07 08:01:32

636

Views

Can Stolz-Cesaro theorem be applied to this problem? If $\lim\limits_{x\to\infty}(f(x+1)-f(x))=l$, Prove that $\lim\limits_{x\to\infty}\frac{f(x)}x=l$

Published on 07 Feb 2024 - 8:01

score 148 · Answer 7 · 2024-02-08 06:14:26

148

Views

Show $x^m = 1$ has at most $m$ solutions in $(\mathbb{Z}/p\mathbb{Z})^{\times}$ WITHOUT field results (Lagrange) or cyclicity

Published on 08 Feb 2024 - 6:14

score 25 · Answer 8 · 2026-03-30 02:10:06

25

Views

Alternative approaches to a primitive recursion problem

Published on 30 Mar 2026 - 2:10

score 81 · Answer 9 · 2026-03-25 22:04:07

81

Views

Proof of Hahn-Banach theorem from Compactness theorem of FOL

Published on 25 Mar 2026 - 22:04

score 103 · Answer 10 · 2024-02-12 15:27:44

103

Views

Is there alternatives proofs that if $m^4 + 4^n$ is prime number then $m$ is odd and $n $ is even?

Published on 12 Feb 2024 - 15:27

score 243 · Answer 11 · 2024-02-15 15:05:37

243

Views

Proving the Intermediate Value Theorem from the Bolzano-Weierstrass Theorem

Published on 15 Feb 2024 - 15:05

score 113 · Answer 12 · 2026-03-27 12:14:14

113

Views

Visual proof of $\sum_{n=2}^{\infty} \left( \zeta(n)-1 \right) = 1 $

Published on 27 Mar 2026 - 12:14

score 122 · Answer 13 · 2024-02-16 18:06:41

122

Views

How to evaluate $\int\left(\frac{\sin(x)}{2\sin(x)- x(1+\cos(x))}\right)^2dx$?

Published on 16 Feb 2024 - 18:06

score 42 · Answer 14 · 2024-02-16 19:26:08

42

Views

ABC is equilateral iff the midpoints of the sides and of the segments from vertix to centroid all lie on a circumference

Published on 16 Feb 2024 - 19:26

score 57 · Answer 15 · 2026-03-30 05:12:02

57

Views

What alternative proof can be used on this theorem?

Published on 30 Mar 2026 - 5:12

List Question

A projection not commuting with an element of a partition of unity

Axler LADR, ex. 2.A.16

Check for differentiability of $|xy|$ at $(0,0)$, $(a,0)$ and $(0,b)$

What methods can be used to solve $y'=xy;y(0)=2$?

What methods can be used to solve $\int_{0}^{\infty}x^{-\ln x}dx=\sqrt{\pi\sqrt{e}}$?

Can Stolz-Cesaro theorem be applied to this problem? If $\lim\limits_{x\to\infty}(f(x+1)-f(x))=l$, Prove that $\lim\limits_{x\to\infty}\frac{f(x)}x=l$

Show $x^m = 1$ has at most $m$ solutions in $(\mathbb{Z}/p\mathbb{Z})^{\times}$ WITHOUT field results (Lagrange) or cyclicity

Alternative approaches to a primitive recursion problem

Proof of Hahn-Banach theorem from Compactness theorem of FOL

Is there alternatives proofs that if $m^4 + 4^n$ is prime number then $m$ is odd and $n $ is even?

Proving the Intermediate Value Theorem from the Bolzano-Weierstrass Theorem

Visual proof of $\sum_{n=2}^{\infty} \left( \zeta(n)-1 \right) = 1 $

How to evaluate $\int\left(\frac{\sin(x)}{2\sin(x)- x(1+\cos(x))}\right)^2dx$?

ABC is equilateral iff the midpoints of the sides and of the segments from vertix to centroid all lie on a circumference

What alternative proof can be used on this theorem?

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