List questions from affine-schemes

Published on 09 Apr 2026 - 4:22

577

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Vanishing of Sheaf cohomology over (affine ) schemes

Published on 13 Apr 2026 - 10:36

126

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Question about the Spec of a power set ring

Published on 10 Apr 2026 - 21:32

50

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$(Y,\mathcal{O}_Y)\cong (\operatorname{Spec}(A(Y)),\mathcal{O}_{A(Y)}) $?

Published on 09 Apr 2026 - 5:58

251

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Motivating examples of Spec(R) where R is not a finitely generated k-algebra

Published on 10 Apr 2026 - 22:17

82

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Complexifications of degree 3 subschemes in $\mathbb A^2_{\mathbb R}$

Published on 14 Apr 2026 - 6:50

214

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Morphism between two $K$-schemes restricted to an affine subscheme

Published on 13 Apr 2026 - 17:51

160

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Affine open sets of a scheme after a base change

Published on 12 Apr 2026 - 2:48

137

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Graph of a morphism between two $K$-schemes: an open covering

Published on 15 Apr 2026 - 14:18

318

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What is the opposite of category of schemes

Published on 16 Apr 2026 - 8:49

72

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Why is : $ \ \ V \times_U W = p^{-1} (V) \bigcap q^{-1} (W) $?

Published on 16 Apr 2026 - 15:28

617

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Tensor product of injective ring homomorphisms

Published on 15 Apr 2026 - 9:31

143

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Quotientes of afine group schemes

Published on 10 May 2026 - 21:58

483

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integral ring homomorphism

Published on 10 May 2026 - 23:03

277

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If $\mathfrak a\subset A$ is a finitely generated ideal, and if $\mathfrak p$ is a prime ideal, then $S(\mathfrak a)\cap\mathfrak p\not=\emptyset ?$

Published on 14 Apr 2026 - 22:32

List Question

Can a non-affine scheme admit an fpqc covering by an affine scheme?

Vanishing of Sheaf cohomology over (affine ) schemes

Question about the Spec of a power set ring

$(Y,\mathcal{O}_Y)\cong (\operatorname{Spec}(A(Y)),\mathcal{O}_{A(Y)}) $?

Motivating examples of Spec(R) where R is not a finitely generated k-algebra

Complexifications of degree 3 subschemes in $\mathbb A^2_{\mathbb R}$

Morphism between two $K$-schemes restricted to an affine subscheme

Affine open sets of a scheme after a base change

Graph of a morphism between two $K$-schemes: an open covering

What is the opposite of category of schemes

Why is : $ \ \ V \times_U W = p^{-1} (V) \bigcap q^{-1} (W) $?

Tensor product of injective ring homomorphisms

Quotientes of afine group schemes

integral ring homomorphism

If $\mathfrak a\subset A$ is a finitely generated ideal, and if $\mathfrak p$ is a prime ideal, then $S(\mathfrak a)\cap\mathfrak p\not=\emptyset ?$

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