Question

Is proper morphism from affine scheme affine?

score 786 · Answer 1 · 2026-04-11 07:26:54

786

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Is proper morphism from affine scheme affine?

Published on 11 Apr 2026 - 7:26

score 4.6k · Answer 2 · 2026-04-10 03:08:33

4.6k

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Understanding the Proof of the Arzela-Ascoli Theorem from Carothers

Published on 10 Apr 2026 - 3:08

score 198 · Answer 3 · 2014-11-21 14:51:33

198

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Explanation of Proof that field sum of more than 2 elements is 0.

Published on 21 Nov 2014 - 14:51

score 195 · Answer 4 · 2014-11-30 02:33:47

195

Views

Localization of Rings: Show $R_{f} \simeq R[X]/\langle 1-fX \rangle$

Published on 30 Nov 2014 - 2:33

score 1.8k · Answer 5 · 2026-04-12 08:43:37

1.8k

Views

Intuitive understanding of the uniqueness of the Fundamental Theorem of Arithmetic.

Published on 12 Apr 2026 - 8:43

score 1.5k · Answer 6 · 2026-04-12 17:39:52

1.5k

Views

In Zagier's one-sentence proof, why is S defined to be {(x,y,z)∈ℕ^3:x^2+4yz=p,p prime}?

Published on 12 Apr 2026 - 17:39

score 102 · Answer 7 · 2026-04-10 06:48:40

102

Views

Just a proof of algebra

Published on 10 Apr 2026 - 6:48

score 309 · Answer 8 · 2026-03-30 20:42:54

309

Views

Extention of Euclid's GCD Algorithm. (The Art of Computer Programming, Volume 1, Edition 3, Section 1.2.1, Exercise 12)

Published on 30 Mar 2026 - 20:42

score 145 · Answer 9 · 2026-04-12 20:52:26

145

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If $(a,b)=1$ and $p \mid a^{2}+b^{2}$ why can one assume that $|a| < \frac{p}{2}$

Published on 12 Apr 2026 - 20:52

score 304 · Answer 10 · 2026-04-11 11:01:04

304

Views

Fundamental Characterisation of Measureable Functions Explanation (Characterization)

Published on 11 Apr 2026 - 11:01

score 199 · Answer 11 · 2026-04-09 13:38:08

199

Views

Finding irreducible polynomial which is not separable.

Published on 09 Apr 2026 - 13:38

score 202 · Answer 12 · 2026-03-26 19:02:53

202

Views

How does it follow that $\operatorname{Var} (g({X}) {\epsilon} | {X}) = (g({X}) )\operatorname{Var} ( {\epsilon} | {X}) (g({X}) )^{\prime}$?

Published on 26 Mar 2026 - 19:02

score 358 · Answer 13 · 2026-03-25 14:03:18

358

Views

Golden Mean of Rectangle

Published on 25 Mar 2026 - 14:03

score 88 · Answer 14 · 2026-04-12 22:02:35

88

Views

Step in proof about maximum of the solution of the heat equation

Published on 12 Apr 2026 - 22:02

score 76 · Answer 15 · 2026-04-12 04:33:44

76

Views

Proof of minimum distance for a "bent line" using the triangle inequality

Published on 12 Apr 2026 - 4:33

List Question

Is proper morphism from affine scheme affine?

Understanding the Proof of the Arzela-Ascoli Theorem from Carothers

Explanation of Proof that field sum of more than 2 elements is 0.

Localization of Rings: Show $R_{f} \simeq R[X]/\langle 1-fX \rangle$

Intuitive understanding of the uniqueness of the Fundamental Theorem of Arithmetic.

In Zagier's one-sentence proof, why is S defined to be {(x,y,z)∈ℕ^3:x^2+4yz=p,p prime}?

Just a proof of algebra

Extention of Euclid's GCD Algorithm. (The Art of Computer Programming, Volume 1, Edition 3, Section 1.2.1, Exercise 12)

If $(a,b)=1$ and $p \mid a^{2}+b^{2}$ why can one assume that $|a| < \frac{p}{2}$

Fundamental Characterisation of Measureable Functions Explanation (Characterization)

Finding irreducible polynomial which is not separable.

How does it follow that $\operatorname{Var} (g({X}) {\epsilon} | {X}) = (g({X}) )\operatorname{Var} ( {\epsilon} | {X}) (g({X}) )^{\prime}$?

Golden Mean of Rectangle

Step in proof about maximum of the solution of the heat equation

Proof of minimum distance for a "bent line" using the triangle inequality

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