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15
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If $X$ is a scheme, what do we usually mean by $|X|$?

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#notation #schemes
191
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Confusion on trivializing vector bundles over generic point

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#algebraic-geometry #commutative-algebra #vector-bundles #schemes
224
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Group schemes, group law and base change

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#algebraic-geometry #schemes #group-schemes
93
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Commuting morphism of schemes

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#algebraic-geometry #schemes
386
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Ring of dual numbers 2.8 Hartshorne

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#algebraic-geometry #schemes
111
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Details of the criterion for representability of a functor of S-schemes

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#algebraic-geometry #category-theory #schemes #functors #representable-functor
173
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Proof verification: The symplectic group scheme is smooth over $\mathbb Z$

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#algebraic-geometry #solution-verification #schemes #group-schemes
61
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Some basic properties of closed subschemes

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#algebraic-geometry #schemes
128
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Sections of very ample line bundle

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#algebraic-geometry #schemes #coherent-sheaves #line-bundles
245
Views

Global section morphism is surjective?

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#algebraic-geometry #schemes
108
Views

Divisor group of a integral scheme of dimension one

Published on
#schemes #divisors-algebraic-geometry
64
Views

Inverse image of basic open set

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#algebraic-geometry #schemes
81
Views

Weak embedded resolution (from Resolution of Singularities by Kollar)

Published on
#algebraic-geometry #modules #schemes #coherent-sheaves
108
Views

Locally ringed point space is not a scheme?

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#algebraic-geometry #schemes #ringed-spaces
224
Views

Is the preimage of the generic point of the map $\mathbb{P}^n_R \to \operatorname{Spec}R$ open?

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#algebraic-geometry #schemes #affine-schemes #projective-schemes

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