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Motivation of completions of schemes?

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#algebraic-geometry #schemes #formal-completions
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Finite type and finite fibers implies quasi-finite

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#algebraic-geometry #schemes
105
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If $X$ is a proper scheme over $k$, is $X/G$ separated?

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#algebraic-geometry #schemes
1k
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Classifying non-reduced points in noetherian schemes

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#algebraic-geometry #schemes
166
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Action on algebraic variety and adjoint bundles

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#algebraic-geometry #vector-bundles #schemes #algebraic-groups #principal-bundles
156
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About normalizer subgroup scheme

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#algebraic-geometry #schemes #algebraic-groups #group-schemes
360
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Geometric intuition behind $V(M)=\operatorname{Spec}(\operatorname{Sym}(M))$?

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#algebraic-geometry #vector-bundles #schemes #affine-schemes
1k
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Is representability of Zariski sheaves local on the base?

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#algebraic-geometry #category-theory #sheaf-theory #schemes #grothendieck-topologies
243
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Closed subscheme defined by kernel of diagonal homomorphism

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#algebraic-geometry #schemes
1k
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What is the geometric meaning of representability?

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#algebraic-geometry #category-theory #intuition #schemes
600
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Construction of Tate curve and formal schemes

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#number-theory #algebraic-geometry #reference-request #elliptic-curves #schemes
641
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Composition of morphisms of locally ringed spaces

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#algebraic-geometry #sheaf-theory #schemes #ringed-spaces
97
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Scheme morphism properties that aren't stable under taking triangles?

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#algebraic-geometry #schemes
1.4k
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Residue fields of schemes of finite type (over $\mathbb{Z}$)

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#algebraic-geometry #commutative-algebra #finite-fields #schemes #affine-schemes
53
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A category of closed immersions

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#algebraic-geometry #schemes

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