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Kernel of an étale self-map of an elliptic curve and the Galois group.

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#algebraic-geometry #elliptic-curves
510
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A finitely-generated ring over the integers modulo a max ideal is necessarily a finite field

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#abstract-algebra #algebraic-geometry #ring-theory #commutative-algebra
70
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Algebraic maps and morphisms

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#algebraic-geometry #proof-writing
63
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Finding a complementary linear subspace to a variety of correct dimension in $\mathbb{P}^n$

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#algebraic-geometry #projective-space
166
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Is the concept of vector bundle is a special case of the notion of family of algebraic varieties?

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#algebraic-geometry #sheaf-theory #vector-bundles #schemes #moduli-space
43
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Commuting Derivations on Regular Local $k$-algebra

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#algebraic-geometry #commutative-algebra
2.5k
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Proving there are an infinite number of irreducible monic polynomials over a field

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#abstract-algebra #algebraic-geometry #ring-theory
739
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Help with proof in Hartshorne concerning points in a product scheme being regular in codim 1

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#algebraic-geometry #commutative-algebra #proof-explanation #divisors-algebraic-geometry
518
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What is a smooth projective model of $X$ (an affine variety)?

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#algebraic-geometry #definition
370
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comparison between valuation ring and proper morphism

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#algebraic-geometry #ring-theory #valuation-theory
68
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Construction of the trace ring

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#algebraic-geometry #ring-theory
170
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Divided power envelope and polynomial rings

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#abstract-algebra #algebraic-geometry #ring-theory #commutative-algebra
159
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Algebraic Curve mapped to a Point

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#algebraic-geometry
197
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Pullback of Ample Sheaf is Ample

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#algebraic-geometry #sheaf-theory
875
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Why the Skyscraper Sheaf is Named as Such, Intuition and Interpretation

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#abstract-algebra #general-topology #algebraic-geometry #sheaf-theory

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