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Is every affine scheme the complement of the closed point $x$ of the spectrum of a local ring $A$?

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#algebraic-geometry #commutative-algebra
137
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Software tools for medium-scale systems of polynomial equations

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#algebraic-geometry #numerical-optimization
191
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When do two integral superellipses have 'nice' intersections?

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#algebraic-geometry #systems-of-equations #algebraic-curves #irreducible-polynomials
287
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Base-points and invertible sheaves

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#algebraic-geometry #coherent-sheaves
79
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Blow-Up over a Field

Published on
#geometry #algebraic-geometry
1k
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roots of a polynomial inside a circle

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#complex-analysis #algebraic-geometry #polynomials
323
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Asterisk Notation

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#abstract-algebra #algebraic-geometry #sheaf-theory #sheaf-cohomology
239
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do the homomorphisms between two group schemes form a sheaf in the (whatever)-topology?

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#algebraic-geometry
1.7k
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What are local homomorphisms, geometrically?

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#algebraic-geometry #commutative-algebra
287
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List of exercises and examples to see the geometry behind algebraic geometry

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#algebraic-geometry
169
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Only $f^\sharp_x$ makes the diagram commutative

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#algebraic-geometry #sheaf-theory
1.1k
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scheme-theoretic image behaves nicely with composition, base change?

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#algebraic-geometry
170
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Resolving the Base-points through Blow-ups

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#algebraic-geometry
544
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Some questions on Hartshorne I.7: intersections in projective space

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#algebraic-geometry #commutative-algebra
326
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Homotopy groups relating to toric varieties

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#algebraic-geometry #algebraic-topology #homotopy-theory #invariant-theory #geometric-invariant-theory

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