Question

Understanding uniqueness in Banach's Fixed Point Theorem

score 89 · Answer 1 · 2019-02-09 17:38:20

89

Views

Understanding uniqueness in Banach's Fixed Point Theorem

Published on 09 Feb 2019 - 17:38

score 209 · Answer 2 · 2026-04-01 12:50:06

209

Views

Theorem 122. of Hardy's Theory of Numbers.

Published on 01 Apr 2026 - 12:50

score 424 · Answer 3 · 2019-02-10 13:36:06

424

Views

Is it true that $\int_0^\infty \frac{f(x)}{x} \sin \bigl(\frac{\pi x}{a}\bigr) \,\mathrm{d}x = \frac{\pi}{2} \int_0^{a/2} f(x) \,\mathrm{d}x$?

Published on 10 Feb 2019 - 13:36

score 151 · Answer 4 · 2026-04-03 18:46:03

151

Views

Some confusion about complex logarithm on simple connected set (In the proof of Riemann mapping theorem) .

Published on 03 Apr 2026 - 18:46

score 552 · Answer 5 · 2026-03-27 17:34:06

552

Views

Find the length of a triangle's side

Published on 27 Mar 2026 - 17:34

score 144 · Answer 6 · 2026-03-27 09:37:52

144

Views

How does this prove that the solution is optimal?

Published on 27 Mar 2026 - 9:37

score 308 · Answer 7 · 2026-03-27 17:34:13

308

Views

Subtracting ratios from each other to find which solution is more concentrated.

Published on 27 Mar 2026 - 17:34

score 3.5k · Answer 8 · 2019-02-10 20:02:54

3.5k

Views

If $ƒ$ and $ƒ \circ g$ are one-to-one, does it follow that $g$ is one-to-one?

Published on 10 Feb 2019 - 20:02

score 39 · Answer 9 · 2026-03-31 16:55:30

39

Views

Applying chain rule to $f(x,y) = -h(x,-y)$

Published on 31 Mar 2026 - 16:55

score 39 · Answer 10 · 2019-02-10 20:45:38

39

Views

Proof of sets $A = ({n \in \mathbb{Z}} | (\exists k \in \mathbb{Z})(n=4k+1)) $, $B = ({n \in \mathbb{Z}} | (\exists k \in \mathbb{Z})(n=4j-7)) $

Published on 10 Feb 2019 - 20:45

score 15 · Answer 11 · 2026-03-30 17:07:22

15

Views

Algebraic plateau in proof by induction

Published on 30 Mar 2026 - 17:07

score 396 · Answer 12 · 2026-03-26 05:55:56

396

Views

On the proof of the Whitney trick (from Scorpan's book)

Published on 26 Mar 2026 - 5:55

score 158 · Answer 13 · 2026-03-29 12:13:01

158

Views

local approximation by smooth functions

Published on 29 Mar 2026 - 12:13

score 39 · Answer 14 · 2026-03-27 07:49:37

39

Views

Why can't we just have $\xi = 0$ as the optimal value?

Published on 27 Mar 2026 - 7:49

score 187 · Answer 15 · 2026-04-03 16:25:54

187

Views

Elementary Proof of Erdos for prime number theorem.

Published on 03 Apr 2026 - 16:25

List Question

Understanding uniqueness in Banach's Fixed Point Theorem

Theorem 122. of Hardy's Theory of Numbers.

Is it true that $\int_0^\infty \frac{f(x)}{x} \sin \bigl(\frac{\pi x}{a}\bigr) \,\mathrm{d}x = \frac{\pi}{2} \int_0^{a/2} f(x) \,\mathrm{d}x$?

Some confusion about complex logarithm on simple connected set (In the proof of Riemann mapping theorem) .

Find the length of a triangle's side

How does this prove that the solution is optimal?

Subtracting ratios from each other to find which solution is more concentrated.

If $ƒ$ and $ƒ \circ g$ are one-to-one, does it follow that $g$ is one-to-one?

Applying chain rule to $f(x,y) = -h(x,-y)$

Proof of sets $A = ({n \in \mathbb{Z}} | (\exists k \in \mathbb{Z})(n=4k+1)) $, $B = ({n \in \mathbb{Z}} | (\exists k \in \mathbb{Z})(n=4j-7)) $

Algebraic plateau in proof by induction

On the proof of the Whitney trick (from Scorpan's book)

local approximation by smooth functions

Why can't we just have $\xi = 0$ as the optimal value?

Elementary Proof of Erdos for prime number theorem.

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