Question

Metric in $\mathbb{P}_2$

score 101 · Answer 1 · 2015-06-13 13:06:47

101

Views

Metric in $\mathbb{P}_2$

Published on 13 Jun 2015 - 13:06

score 300 · Answer 2 · 2015-06-13 16:00:55

300

Views

How is it that dot product does projection but so does division?

Published on 13 Jun 2015 - 16:00

score 149 · Answer 3 · 2015-06-16 02:08:43

149

Views

Method for Visualizing Projective Space

Published on 16 Jun 2015 - 2:08

score 27 · Answer 4 · 2015-06-17 20:12:15

27

Views

Generalization of a Result Concerning Projective Planes

Published on 17 Jun 2015 - 20:12

score 416 · Answer 5 · 2015-06-19 10:33:16

416

Views

Preserving shapes in perspective projection

Published on 19 Jun 2015 - 10:33

score 63 · Answer 6 · 2026-03-30 13:41:29

63

Views

Show that there exists a coordinate system in $\mathbb{P}^n$ such that $P_0=(1:0:\cdots:0),\ldots,P_n=(0:0:\cdots:1),P_{n+1}=(1:\cdots:1)$

Published on 30 Mar 2026 - 13:41

score 2.8k · Answer 7 · 2026-03-25 15:41:17

2.8k

Views

Show that any quadric in $\mathbb{P}^3$ is isomorphic to $\mathbb{P}^1 \times \mathbb{P}^1$

Published on 25 Mar 2026 - 15:41

score 484 · Answer 8 · 2026-03-25 21:53:23

484

Views

Standard Cremona Involution

Published on 25 Mar 2026 - 21:53

score 1.7k · Answer 9 · 2015-06-25 06:29:35

1.7k

Views

Are projective transformation linear and why?

Published on 25 Jun 2015 - 6:29

score 358 · Answer 10 · 2015-06-25 13:14:12

358

Views

Projective space of a module

Published on 25 Jun 2015 - 13:14

score 27 · Answer 11 · 2015-06-25 19:47:41

27

Views

Projective conic generated by a set of tangent triangles.

Published on 25 Jun 2015 - 19:47

score 98 · Answer 12 · 2026-03-30 13:41:27

98

Views

Given a point $P$ and a hyperplane $H$ in $\mathbb{P}^n$ such that $P \in H$, there is $T$ linear such that $T(P)=(0:\cdots:0:1)$ and $H:X_0=0$

Published on 30 Mar 2026 - 13:41

score 753 · Answer 13 · 2015-06-26 06:43:26

753

Views

How can I get a cohomology of hypersurfaces by using their equation?

Published on 26 Jun 2015 - 6:43

score 386 · Answer 14 · 2026-03-26 01:11:06

386

Views

How does the multiplicative group of a finite field, considered as a vector space, act on subspaces?

Published on 26 Mar 2026 - 1:11

score 487 · Answer 15 · 2026-03-28 05:23:13

487

Views

Find the intersection of two lines entirely outside the given sheet of paper by straightedge alone

Published on 28 Mar 2026 - 5:23

List Question

Metric in $\mathbb{P}_2$

How is it that dot product does projection but so does division?

Method for Visualizing Projective Space

Generalization of a Result Concerning Projective Planes

Preserving shapes in perspective projection

Show that there exists a coordinate system in $\mathbb{P}^n$ such that $P_0=(1:0:\cdots:0),\ldots,P_n=(0:0:\cdots:1),P_{n+1}=(1:\cdots:1)$

Show that any quadric in $\mathbb{P}^3$ is isomorphic to $\mathbb{P}^1 \times \mathbb{P}^1$

Standard Cremona Involution

Are projective transformation linear and why?

Projective space of a module

Projective conic generated by a set of tangent triangles.

Given a point $P$ and a hyperplane $H$ in $\mathbb{P}^n$ such that $P \in H$, there is $T$ linear such that $T(P)=(0:\cdots:0:1)$ and $H:X_0=0$

How can I get a cohomology of hypersurfaces by using their equation?

How does the multiplicative group of a finite field, considered as a vector space, act on subspaces?

Find the intersection of two lines entirely outside the given sheet of paper by straightedge alone

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