List questions from schemes

Published on 09 Apr 2026 - 4:32

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Hartshorne theorem II.8.19

Published on 01 Oct 2021 - 17:35

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Notation in Katz-Mazur Arithmetic Moduli of Elliptic Curves

Published on 26 Mar 2026 - 4:32

389

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Another proof of the fact that the "magic diagram" is cartesian.

Published on 13 Apr 2026 - 10:23

472

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If a function vanishes at all points of a quasicompact scheme, then some power of it is zero

Published on 05 Oct 2021 - 3:48

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Concrete proof of "If $U$ and $V$ are open subsets of an $A$-scheme $X$, then $\Delta\cap(U\times_A V)\cong U\cap V$"

Published on 10 Apr 2026 - 18:44

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What is the meaning of the residue field of a point in scheme?

Published on 12 Apr 2026 - 13:16

120

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Dimension of Quot scheme

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What is an immersion of schemes? Understanding Hartshorne's Theorem II.7.6

Published on 12 Oct 2021 - 1:14

83

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Is quotient of group scheme is again group scheme?

Published on 09 Apr 2026 - 13:00

158

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Why don't the $K$-rational points of an elliptic curve over $K$ form a scheme?

Published on 12 Apr 2026 - 1:59

62

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Why $(0)$ and $spec(k)$ is $R$-scheme?

Published on 12 Apr 2026 - 12:42

82

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Dimension of a elliptic curve as a scheme

Published on 11 Apr 2026 - 20:11

41

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$R$-Scheme $X$ and $X$'s generic fiber has the same dimension as $S$-scheme?

Published on 13 Apr 2026 - 6:36

72

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Hartshorne corollary 5.20 in chapter two.

Published on 15 Oct 2021 - 1:31

List Question

On closed points in quasi-compact schemes

Hartshorne theorem II.8.19

Notation in Katz-Mazur Arithmetic Moduli of Elliptic Curves

Another proof of the fact that the "magic diagram" is cartesian.

If a function vanishes at all points of a quasicompact scheme, then some power of it is zero

Concrete proof of "If $U$ and $V$ are open subsets of an $A$-scheme $X$, then $\Delta\cap(U\times_A V)\cong U\cap V$"

What is the meaning of the residue field of a point in scheme?

Dimension of Quot scheme

What is an immersion of schemes? Understanding Hartshorne's Theorem II.7.6

Is quotient of group scheme is again group scheme?

Why don't the $K$-rational points of an elliptic curve over $K$ form a scheme?

Why $(0)$ and $spec(k)$ is $R$-scheme?

Dimension of a elliptic curve as a scheme

$R$-Scheme $X$ and $X$'s generic fiber has the same dimension as $S$-scheme?

Hartshorne corollary 5.20 in chapter two.

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