Question

Fundamental group of $Q:=\{[x,y,z,t,u,v] \in \mathbb{R}P^5 |x^2+y^2+z^2-t^2-u^2-v^2=0\}$ and a covering of a quadric

score 202 · Answer 1 · 2019-02-22 18:22:39

202

Views

Fundamental group of $Q:=\{[x,y,z,t,u,v] \in \mathbb{R}P^5 |x^2+y^2+z^2-t^2-u^2-v^2=0\}$ and a covering of a quadric

Published on 22 Feb 2019 - 18:22

score 1.3k · Answer 2 · 2019-02-23 00:55:28

1.3k

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score 90 · Answer 3 · 2026-03-27 00:10:55

90

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score 81 · Answer 5 · 2019-02-27 23:25:22

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score 38 · Answer 6 · 2019-03-05 19:48:28

38

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score 38 · Answer 7 · 2019-03-10 17:08:07

38

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score 158 · Answer 8 · 2019-03-11 01:39:12

158

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score 196 · Answer 9 · 2026-03-25 01:21:46

196

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246

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score 69 · Answer 11 · 2026-03-26 12:40:53

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score 331 · Answer 12 · 2026-03-26 06:18:55

331

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score 264 · Answer 13 · 2019-03-14 18:53:27

264

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Published on 14 Mar 2019 - 18:53

score 787 · Answer 14 · 2019-03-14 19:25:16

787

Views

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Published on 14 Mar 2019 - 19:25

score 38 · Answer 15 · 2019-03-20 23:05:23

38

Views

Given the projectivity $\textbf x'=H\textbf x$, why is $\textbf x' \times H\textbf x = 0$?

Published on 20 Mar 2019 - 23:05

List Question

Fundamental group of $Q:=\{[x,y,z,t,u,v] \in \mathbb{R}P^5 |x^2+y^2+z^2-t^2-u^2-v^2=0\}$ and a covering of a quadric

Complex Projective Line is homeomorphic to the 2-sphere

Would finding perspective distance using infinite subdivisions be impossible due to self-recursion?

Mathematics and the art of linearizing the circle

Projective Geometry: Prove that the mapping in P2R is not well-defined.

Find the dimension of the sum of three planes

What would be a geometric Euclidean interpretation of the homogeneous plane (0,0,0,8)?

Are superelliptic curves singular?

Transforming Quadrics in Characteristic 2

Explicit formula for the projection from the line to an arbitrary circle

Disjoint Lines in Projective Space

Triangle Inequality for Angles in Projective Space

Number of Rational Points on $C : ax^2 + bxy + cy^2 = dz^2$ over finite field

Show that the set of lines in $\mathbb{R}^n$ is a (smooth) manifold of dimension $2(n-1)$

Given the projectivity $\textbf x'=H\textbf x$, why is $\textbf x' \times H\textbf x = 0$?

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