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15
385
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What is meant by "local equation" for a closed subscheme?

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#general-topology #algebraic-geometry #sheaf-theory #projective-space
227
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Why is $\operatorname{Hom}( \mu_p, \alpha_p)$ trivial?

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#abstract-algebra #algebraic-geometry #commutative-algebra #sheaf-theory #sheaf-cohomology
131
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How to compute $H^i_{\operatorname{fppf}}(\mathbb{P}^1,\alpha_p)$?

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#abstract-algebra #algebraic-geometry #sheaf-theory #etale-cohomology
227
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Sheaf cohomology with support vanishes

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#algebraic-geometry #sheaf-theory #sheaf-cohomology
577
Views

Hom Tensor Adjunction for Ext Groups

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#category-theory #sheaf-theory #derived-functors
113
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Conormal Bundle of Projective Scheme

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#algebraic-geometry #sheaf-theory
430
Views

Projective objects in a presheaf topos is a retract of representables

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#category-theory #sheaf-theory
140
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Restriction of Invertible Sheaf to Curve

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#algebraic-geometry #sheaf-theory
166
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Why is normality of a scheme required to define the sheaf $\mathcal{L}(D)$ of a divisor?

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#algebraic-geometry #sheaf-theory #coherent-sheaves #divisors-algebraic-geometry
157
Views

Fibers and total spaces of vector bundles from sheaf theoretic approach.

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#differential-geometry #algebraic-geometry #sheaf-theory #vector-bundles
151
Views

Restriction of Inverse Image of Tautological Sheaf

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#algebraic-geometry #sheaf-theory
42
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No projective sheaves on affine real space

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#homological-algebra #sheaf-theory
111
Views

divisor of inverse image sheaf

Published on
#algebraic-geometry #sheaf-theory
160
Views

Show that global section is a unit on suitable open subset.

Published on
#algebraic-geometry #sheaf-theory
1k
Views

Definition of a Sheaf, making sense of

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#abstract-algebra #algebraic-geometry #sheaf-theory #sheaf-cohomology #coherent-sheaves

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