Question

Is this a simpler proof that all transformations mapping D(1:0) onto D(1;0) are of the form $\;\;e^{i\lambda}\frac{z-\alpha}{\bar{\alpha}z-1}$

score 55 · Answer 1 · 2026-03-25 09:21:29

55

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Is this a simpler proof that all transformations mapping D(1:0) onto D(1;0) are of the form $\;\;e^{i\lambda}\frac{z-\alpha}{\bar{\alpha}z-1}$

Published on 25 Mar 2026 - 9:21

score 1.1k · Answer 2 · 2026-04-15 19:00:38

1.1k

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The set at which a function's oscillation is at least $\epsilon$ is closed

Published on 15 Apr 2026 - 19:00

score 108 · Answer 3 · 2026-04-15 12:42:28

108

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Differentiability implies continuity proof

Published on 15 Apr 2026 - 12:42

score 2.3k · Answer 4 · 2026-04-16 08:22:17

2.3k

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$f$ is Riemann integrable if the set of discontinuities is measure zero.

Published on 16 Apr 2026 - 8:22

score 1.2k · Answer 5 · 2026-04-14 19:14:46

1.2k

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If $f$ and $g$ are one-to-one, then $gf$ is one-to-one.

Published on 14 Apr 2026 - 19:14

score 855 · Answer 6 · 2026-04-10 04:51:44

855

Views

A Proof about the Oscillation of a Function on Compact Interval

Published on 10 Apr 2026 - 4:51

score 232 · Answer 7 · 2026-04-17 10:34:39

232

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Solving the Wave Equation With Boundary Conditions $u(0,t)=0, \ u_x(1,t)=0$

Published on 17 Apr 2026 - 10:34

score 183 · Answer 8 · 2026-04-14 19:02:11

183

Views

Proof verification: If $f$ is surjective and $gf$ is injective prove that $g$ is injective.

Published on 14 Apr 2026 - 19:02

score 1.3k · Answer 9 · 2026-04-15 20:11:27

1.3k

Views

Proof that four ($n$) vectors cannot span $\mathbb R^5$ ($\mathbb R^{n+1}$)

Published on 15 Apr 2026 - 20:11

score 136 · Answer 10 · 2026-04-14 00:23:47

136

Views

Proof of Theorem 6.12(a) in "Principles of Mathematical Analysis 3rd Edition" by Walter Rudin

Published on 14 Apr 2026 - 0:23

score 269 · Answer 11 · 2026-04-29 16:17:44

269

Views

When is $f''(x)$ undefined but $x$ not an inflection point of $f$?

Published on 29 Apr 2026 - 16:17

score 52 · Answer 12 · 2026-04-24 02:22:06

52

Views

Prove an inequality of a standard normal random variable.

Published on 24 Apr 2026 - 2:22

score 99 · Answer 13 · 2026-04-16 07:24:16

99

Views

Fermat's Little Theorem and solving $n^2 \equiv -1 \pmod p$

Published on 16 Apr 2026 - 7:24

score 181 · Answer 14 · 2026-04-16 13:16:53

181

Views

Intersection of any 2 intervals $\implies$ all intervals intersect

Published on 16 Apr 2026 - 13:16

score 425 · Answer 15 · 2026-04-12 18:43:54

425

Views

Example 2, Sec. 28, in Munkres' TOPOLOGY, 2nd ed.: Does every compact ordered (or well-ordered) set always have a largest element.

Published on 12 Apr 2026 - 18:43

List Question

Is this a simpler proof that all transformations mapping D(1:0) onto D(1;0) are of the form $\;\;e^{i\lambda}\frac{z-\alpha}{\bar{\alpha}z-1}$

The set at which a function's oscillation is at least $\epsilon$ is closed

Differentiability implies continuity proof

$f$ is Riemann integrable if the set of discontinuities is measure zero.

If $f$ and $g$ are one-to-one, then $gf$ is one-to-one.

A Proof about the Oscillation of a Function on Compact Interval

Solving the Wave Equation With Boundary Conditions $u(0,t)=0, \ u_x(1,t)=0$

Proof verification: If $f$ is surjective and $gf$ is injective prove that $g$ is injective.

Proof that four ($n$) vectors cannot span $\mathbb R^5$ ($\mathbb R^{n+1}$)

Proof of Theorem 6.12(a) in "Principles of Mathematical Analysis 3rd Edition" by Walter Rudin

When is $f''(x)$ undefined but $x$ not an inflection point of $f$?

Prove an inequality of a standard normal random variable.

Fermat's Little Theorem and solving $n^2 \equiv -1 \pmod p$

Intersection of any 2 intervals $\implies$ all intervals intersect

Example 2, Sec. 28, in Munkres' TOPOLOGY, 2nd ed.: Does every compact ordered (or well-ordered) set always have a largest element.

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