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15
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When was Tor-independence first used as a condition for base change?

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#algebraic-geometry #reference-request #sheaf-cohomology
73
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A question about the sequence of holomorphic vector bundle

Published on
#differential-geometry #algebraic-geometry #complex-geometry
553
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Vanishing Ext Group of Torsion-free and Skyscraper Sheaves?

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#algebraic-geometry #homology-cohomology #homological-algebra #sheaf-theory
298
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Quadratic Twists of Hyperelliptic Curve

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#number-theory #algebraic-geometry #elliptic-curves #algebraic-curves #arithmetic-geometry
118
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Why $k[[x^2,x^3]]$ is dimension 1 obvious?

Published on
#abstract-algebra #algebraic-geometry #commutative-algebra
882
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Quasi-coherent sheaf on $Proj\ S$

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#algebraic-geometry #schemes #projective-schemes #quasicoherent-sheaves
277
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How to prove $\mathcal O_X(m)\otimes_{\mathcal O_X} \mathcal O_X(n)= \mathcal O_X(m+n)$?

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#algebraic-geometry #commutative-algebra #projective-schemes #quasicoherent-sheaves
179
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Global sections of a line bundle

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#algebraic-geometry #reference-request #schemes #projective-schemes #line-bundles
197
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Interpretation of Complex disc around origin as a variety

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#algebraic-geometry #complex-geometry #projective-schemes
257
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Are finite type analytic sheaves coherent?

Published on
#complex-analysis #algebraic-geometry #complex-geometry #several-complex-variables
204
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Tangent vector fields on schemes

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#algebraic-geometry #schemes
86
Views

Ring of endomorphisms of elliptic curves

Published on
#algebraic-geometry #elliptic-curves
1k
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Place at infinity in function fields

Published on
#algebraic-geometry #commutative-algebra #field-theory
149
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Principal open subsets of affine quasi-projective varieties

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#algebraic-geometry #projective-varieties
84
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Given infinitely many linear inequalities, can we find an algebraic equation for the boundary?

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#algebraic-geometry #semialgebraic-geometry

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