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Does base change preserve fibre products?

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#abstract-algebra #algebraic-geometry #commutative-algebra #category-theory #schemes
835
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Blow-up of the affine plane in the origin, using schemes.

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#algebraic-geometry #schemes #blowup
65
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Two S-Schemes locally R-algebras for the same R?

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#algebraic-geometry #schemes
103
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Dropping an assumption in Hartshorne exercise 2.5.14 (a)

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#algebraic-geometry #schemes
405
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$Proj S$ integral scheme with S not a domain?

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#algebraic-geometry #examples-counterexamples #schemes #projective-schemes
226
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Dualiziung Sheaf and Dualizing Complex

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#algebraic-geometry #homology-cohomology #schemes
152
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Dimension of the local sections of a scheme is bounded by the dimension of the scheme

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#algebraic-geometry #schemes #dimension-theory-analysis
92
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Intersection of a locally complete intersection using Tor

Published on
#algebraic-geometry #schemes #intersection-theory
469
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The closed points of a scheme and irreducibility

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#general-topology #algebraic-geometry #schemes
365
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Writing an algorithm for matrix

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#matrices #algorithms #schemes
1.2k
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Graph Morphism Closed Immersion

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#algebraic-geometry #schemes
600
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Base Change of Closed Immersion stays Closed Immersion

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#algebraic-geometry #schemes
38
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Reducedness and the choice of affine open subsets

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#algebraic-geometry #schemes
177
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Reducedness is not in general an open condition (Vakil 5.2.2)

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#algebraic-geometry #schemes
1.1k
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Surjective Morphism of Schemes

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#algebraic-geometry #schemes

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