Question

How to define a "distance" from point to line in 3D projective space which is projectively invariant?

score 517 · Answer 1 · 2026-04-23 07:48:50

517

Views

How to define a "distance" from point to line in 3D projective space which is projectively invariant?

Published on 23 Apr 2026 - 7:48

score 52 · Answer 2 · 2026-04-23 23:15:02

52

Views

Dimension of the group of all motions in $\mathbb{R}^n$ which leaves a fixed r-plane invariant.

Published on 23 Apr 2026 - 23:15

score 1k · Answer 3 · 2026-05-07 09:45:02

1k

Views

Invariance of the second moment of area of a regular polygon

Published on 07 May 2026 - 9:45

score 126 · Answer 4 · 2026-05-03 21:43:14

126

Views

Introduction to Euler structures

Published on 03 May 2026 - 21:43

score 571 · Answer 5 · 2026-05-04 04:00:17

571

Views

problem in solving this problem from olympiad(use of invariant)

Published on 04 May 2026 - 4:00

score 1k · Answer 6 · 2026-05-06 16:53:22

1k

Views

Is there a orientable surface that is topologically isomorphic to a nonorientable one?

Published on 06 May 2026 - 16:53

score 66 · Answer 7 · 2026-05-04 06:57:53

66

Views

Affine group, identification and multiplication law

Published on 04 May 2026 - 6:57

score 156 · Answer 8 · 2026-05-03 23:08:19

156

Views

$G$-invariant functions on Manifolds

Published on 03 May 2026 - 23:08

score 88 · Answer 9 · 2026-05-02 20:53:30

88

Views

What is known about rational points on the ideal of relations / syzygy ideal?

Published on 02 May 2026 - 20:53

score 144 · Answer 10 · 2026-05-06 04:43:42

144

Views

Why are invariants of Homology 3-Spheres interesting?

Published on 06 May 2026 - 4:43

score 804 · Answer 11 · 2026-05-04 21:02:24

804

Views

Is dot product the only rotation invariant function?

Published on 04 May 2026 - 21:02

score 4.3k · Answer 12 · 2026-05-03 14:11:36

4.3k

Views

How to find Invariant Lines and Lines of Invariant Points, without utilising Eigenvectors?

Published on 03 May 2026 - 14:11

score 1.8k · Answer 13 · 2026-05-02 12:51:05

1.8k

Views

How can I get better at solving problems using the Invariance Principle?

Published on 02 May 2026 - 12:51

score 196 · Answer 14 · 2026-05-03 07:30:02

The sum of squares of distances from the vertexes of regular polygon to the any line that passes the center of it.

score 292 · Answer 15 · 2026-05-02 10:52:15

292

Views

Do two exponential spirals intersect?

Published on 02 May 2026 - 10:52

List Question

How to define a "distance" from point to line in 3D projective space which is projectively invariant?

Dimension of the group of all motions in $\mathbb{R}^n$ which leaves a fixed r-plane invariant.

Invariance of the second moment of area of a regular polygon

Introduction to Euler structures

problem in solving this problem from olympiad(use of invariant)

Is there a orientable surface that is topologically isomorphic to a nonorientable one?

Affine group, identification and multiplication law

$G$-invariant functions on Manifolds

What is known about rational points on the ideal of relations / syzygy ideal?

Why are invariants of Homology 3-Spheres interesting?

Is dot product the only rotation invariant function?

How to find Invariant Lines and Lines of Invariant Points, without utilising Eigenvectors?

How can I get better at solving problems using the Invariance Principle?

The sum of squares of distances from the vertexes of regular polygon to the any line that passes the center of it.

Do two exponential spirals intersect?

Trending Questions

Popular # Hahtags

Popular Questions