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Projective Line as quotient ringed space

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#algebraic-geometry #sheaf-theory
407
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How we obtain explicitly the long exact sequence of the exponential exact sequence?

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#algebraic-geometry #algebraic-topology #sheaf-theory
169
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Notational Confusion in a definition of Hartshorne about Smooth of relative dimension

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#algebraic-geometry #sheaf-theory #schemes
66
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Confusion when defining a sheaf on a basis of open sets

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#algebraic-geometry #sheaf-theory
678
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Is a locally finitely generated sheaf of modules finitely generated on sections?

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#algebraic-geometry #sheaf-theory #finitely-generated
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The idea behind the notion of dualizing sheaf

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#algebraic-geometry #sheaf-theory #sheaf-cohomology
157
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Exact sequence of groups to exact sequence sheaves

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#sheaf-theory #topological-groups #exact-sequence #sheaf-cohomology
481
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Derived version of projection formula

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#algebraic-geometry #category-theory #sheaf-theory #derived-functors
875
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Why is the structure sheaf for the spectrum of a ring defined locally?

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#algebraic-geometry #ring-theory #commutative-algebra #sheaf-theory #localization
38
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Can any sheaf be produced from constant sheaves by taking direct limit?

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#sheaf-theory
438
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How, in intuitive terms, does sheafification work?

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#sheaf-theory
243
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Exercise in Springer: Linear Algebraic Groups (1.4.8 (i) )

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#algebraic-geometry #sheaf-theory #algebraic-groups
130
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Morphism of $\mathscr O_X$ modules induced by gbolal section

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#algebraic-geometry #sheaf-theory
64
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How to show that this presheaf is a sheaf?

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#abstract-algebra #ring-theory #sheaf-theory
89
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A basic question regarding a rational function on a locally Noetherian scheme

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#algebraic-geometry #sheaf-theory #affine-schemes

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