List questions from projective-space

Published on 25 Mar 2026 - 12:17

21

Views

Show that all the conics o tangential in $[1,0,0]$ on the line $x_1=0$, is a 3D subspace of $\mathbb{P}(Sym_{\mathbb{R}}(3))$

Published on 27 May 2018 - 15:29

276

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Find all the isometries which fix a conic

Published on 28 May 2018 - 8:49

135

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Non trivial section of the Bott bundle

Published on 25 Mar 2026 - 7:41

118

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Disconnecting projective space

Published on 25 Mar 2026 - 15:37

414

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Closed points of projective space

Published on 02 Jun 2018 - 12:54

209

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Problem: Connection between cross ratio and collinearity

Published on 23 Feb 2026 - 4:44

377

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$SU(2)$ acts transitively on $\mathbb{CP}^1$

Published on 25 Mar 2026 - 4:38

124

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Can skew lines preserve cross ratio?

Published on 23 Feb 2026 - 4:45

123

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Is the projective space over matrices of rank bigger than $k$ compact?

Published on 25 Mar 2026 - 14:26

53

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Covering of Projective Space

Published on 12 Jun 2018 - 9:43

276

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Invertible Sheaf of Closed Point in Projective Space

Published on 17 Jun 2018 - 2:28

1.2k

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Euler Characteristic of a blowing up

Published on 25 Mar 2026 - 1:16

1.5k

Views

Projective space definitions

Published on 25 Mar 2026 - 4:41

78

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Projection of circular motion on a perpendicular plane

Published on 28 Jun 2018 - 21:18

List Question

Given the vertex of a parabola, finding the self-polar triangle

Show that all the conics o tangential in $[1,0,0]$ on the line $x_1=0$, is a 3D subspace of $\mathbb{P}(Sym_{\mathbb{R}}(3))$

Find all the isometries which fix a conic

Non trivial section of the Bott bundle

Disconnecting projective space

Closed points of projective space

Problem: Connection between cross ratio and collinearity

$SU(2)$ acts transitively on $\mathbb{CP}^1$

Can skew lines preserve cross ratio?

Is the projective space over matrices of rank bigger than $k$ compact?

Covering of Projective Space

Invertible Sheaf of Closed Point in Projective Space

Euler Characteristic of a blowing up

Projective space definitions

Projection of circular motion on a perpendicular plane

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