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15
275
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Intrepretation of $H^i(X, \mathcal{O}_X) = 0$

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#algebraic-geometry #sheaf-cohomology
261
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If $V$ is a quasi-affine variety, the algebra $k[V]$ is isomorphic to a subalgebra of a finitely generated $k$-algebra?

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#algebraic-geometry #algebras
164
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Show that something is a subsystem of a complete linear system

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#algebraic-geometry #riemann-surfaces
2.8k
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Is a morphism between smooth varieties smooth if fibers are?

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#algebraic-geometry
329
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Question about affine coordinate changes

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#algebraic-geometry #algebraic-curves
2.1k
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Does the category of locally ringed spaces have products?

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#algebraic-geometry #ringed-spaces
93
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Is quotient under $S_4$ action on "cube" representation a flat morphism?

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#abstract-algebra #algebraic-geometry #commutative-algebra #representation-theory
63
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When is a holomorphy ring a PID?

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#algebraic-geometry #commutative-algebra #algebraic-curves #principal-ideal-domains #function-fields
80
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Galois Group acting on disjoint union of Schemes

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#algebraic-geometry
193
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Is a torsor over a variety a variety?

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#number-theory #algebraic-geometry
98
Views

Is the Zariski Topology

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#general-topology #algebraic-geometry
106
Views

Cohomology groups of coherent sheaves for very small and very big twists.

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#algebraic-geometry #sheaf-theory #homology-cohomology #coherent-sheaves #sheaf-cohomology
164
Views

Question about composition of morphisms of schemes (Mumford's)

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#algebraic-geometry #schemes
387
Views

Dimension of irreducible variety

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#algebraic-geometry #commutative-algebra
93
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A natural map of higher direct images.

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#algebraic-geometry

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