List questions from schemes

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When the contraction of maximal ideals is an injective open mapping

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873

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Restriction of a scheme morphism to a closed subset

Published on 09 Jun 2017 - 1:19

136

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from stalk to open neighborhood

Published on 05 Apr 2026 - 14:18

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Do coproducts commute with pullback in the category of affine schemes?

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Computing fiber of morphism between affine schemes

Published on 27 Mar 2026 - 13:18

209

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On section 15.44 (The singular locus) of the Stacks Project

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633

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An homomorphism between the function fields of integral schemes induces a morphism between schemes

Published on 25 Mar 2026 - 17:37

310

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Degree and fiber of scheme morphisms in $\mathbb P^1$ induced by linear system of divisors on an elliptic curve

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Definition of closed subscheme

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108

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Degree of the sum of two scheme morphisms from a curve to $\mathbb P^1$

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108

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Does finite type preserve finite dimensionality?

Published on 29 Mar 2026 - 12:12

369

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$X=\mathrm{Spec}\ k[x,y,z]/(xy-z^2)\Longrightarrow \mathrm{Pic}(X)=0$

Published on 15 Jul 2017 - 10:46

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Qcqs lemma in Ravi Vakil's notes

Published on 27 Mar 2026 - 13:18

221

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k-schemes determined by k-rational points

Published on 16 Jul 2017 - 14:41

List Question

How can one translate between scheme-theoretic and complex-analytic Algebraic Geometry?

When the contraction of maximal ideals is an injective open mapping

Restriction of a scheme morphism to a closed subset

from stalk to open neighborhood

Do coproducts commute with pullback in the category of affine schemes?

Computing fiber of morphism between affine schemes

On section 15.44 (The singular locus) of the Stacks Project

An homomorphism between the function fields of integral schemes induces a morphism between schemes

Degree and fiber of scheme morphisms in $\mathbb P^1$ induced by linear system of divisors on an elliptic curve

Definition of closed subscheme

Degree of the sum of two scheme morphisms from a curve to $\mathbb P^1$

Does finite type preserve finite dimensionality?

$X=\mathrm{Spec}\ k[x,y,z]/(xy-z^2)\Longrightarrow \mathrm{Pic}(X)=0$

Qcqs lemma in Ravi Vakil's notes

k-schemes determined by k-rational points

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