List questions from projective-varieties

Published on 20 Dec 2021 - 16:54

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What is an isomorphism between $L:aX+bY=Z$ and $\Bbb P^1_K$?

Published on 29 Dec 2021 - 13:28

192

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Proof of (slight generalization of) Chow's lemma for varieties

Published on 11 Jan 2022 - 15:48

111

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Two affine varieties which are isomorphic, but their projectivisations are not

Published on 13 Jan 2022 - 18:43

76

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Support of homology in quasi-projective varieties.

Published on 17 Jan 2022 - 19:44

414

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Why is an elliptic curve with $j$-invariant in $K$ defined over $K$?

Published on 22 Jan 2022 - 6:28

91

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Explicit computation for an elliptic curve.

Published on 27 Jan 2022 - 14:30

149

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How to prove this is an isomorphism of varieties

Published on 28 Jan 2022 - 22:19

45

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Space of simple tensors

Published on 11 Feb 2022 - 10:06

448

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Kempf's Proof that Projective Varieties are Complete

Published on 12 Feb 2022 - 0:32

71

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Space of sections of adjoint varieties

Published on 07 Mar 2022 - 11:32

93

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Fano Variety of a Hyperplane (Harris Algebraic Geometry A First Course)

Published on 25 Mar 2022 - 23:50

166

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Projection of rational normal curve is still a rational normal curve (of smaller degree)?

Published on 25 Mar 2026 - 19:10

41

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Isomorphism between $Z(x_1^2-x_0x_2) \subseteq \mathbb{P}^2$ and $\mathbb{P}^1$

Published on 03 Apr 2022 - 14:33

243

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Algebraicity of compact Riemann surfaces

Published on 10 Apr 2022 - 18:51

List Question

Differential of the projectivization of V following Shafarevich

What is an isomorphism between $L:aX+bY=Z$ and $\Bbb P^1_K$?

Proof of (slight generalization of) Chow's lemma for varieties

Two affine varieties which are isomorphic, but their projectivisations are not

Support of homology in quasi-projective varieties.

Why is an elliptic curve with $j$-invariant in $K$ defined over $K$?

Explicit computation for an elliptic curve.

How to prove this is an isomorphism of varieties

Space of simple tensors

Kempf's Proof that Projective Varieties are Complete

Space of sections of adjoint varieties

Fano Variety of a Hyperplane (Harris Algebraic Geometry A First Course)

Projection of rational normal curve is still a rational normal curve (of smaller degree)?

Isomorphism between $Z(x_1^2-x_0x_2) \subseteq \mathbb{P}^2$ and $\mathbb{P}^1$

Algebraicity of compact Riemann surfaces

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