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15
53
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Question about projective line and intersection

Published on
#projective-space #visualization
162
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Conic with only two real points

Published on
#algebraic-geometry #quadratics #projective-space
62
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Connected sum of two non homeomorphic surfaces

Published on
#general-topology #surfaces #projective-space
239
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Submanifold generator and its Poincaré dual in a 5-dimensional real projective space

Published on
#algebraic-topology #manifolds #homology-cohomology #geometric-topology #projective-space
479
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Correspondence between a complex torus and an elliptic curve

Published on
#number-theory #algebraic-geometry #elliptic-curves #projective-space #elliptic-functions
452
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Projective Space v.s. Quotient Space v.s. Fibration

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#differential-geometry #algebraic-geometry #algebraic-topology #projective-space #quotient-spaces
1.3k
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Plücker embedding - Two definitions

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#algebraic-geometry #projective-space #grassmannian
84
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Poincaré dual of the trivial class $H^1(\mathbb{RP}^5,\mathbb{Z}_2)$

Published on
#algebraic-topology #manifolds #homology-cohomology #geometric-topology #projective-space
529
Views

Open sets in complex projective space

Published on
#algebraic-geometry #projective-space
187
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Projective space, showing open map to one point compactification of $\Bbb C$

Published on
#algebraic-geometry #compactness #projective-space
500
Views

Polynomial that vanishes identically on a line

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#algebraic-geometry #projective-geometry #projective-space
949
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Proof that every codimension 1 subvariety of $\mathbb{P}^n$ is $V((f))$

Published on
#algebraic-geometry #projective-space
125
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How to compute $ H^{\bullet} (\mathbb{P}^n (\mathbb{R}), \mathbb{Q}) $, using Mayer Vietoris sequence?

Published on
#algebraic-topology #homology-cohomology #projective-space
341
Views

Homotopy type of a disk and homotopy type of a sphere.

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#algebraic-topology #homology-cohomology #homotopy-theory #projective-space
1.5k
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Calculating $\mathbb{R}P^1$ fundamental group.

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#algebraic-topology #projective-space #fundamental-groups

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