List questions from projective-geometry

Published on 01 Mar 2015 - 9:57

59

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If I wanted to drive due west around the earth would I need to turn my steering wheel?

Published on 27 Mar 2026 - 19:33

1.3k

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Prove two parallel lines intersect at infinity in $\mathbb{RP}^3$

Published on 01 Mar 2015 - 21:20

281

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Show that the real projective line, P1, is orientable

Published on 02 Mar 2015 - 5:37

687

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Intersection of lines in projective space

Published on 02 Mar 2015 - 12:43

209

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What is the symmetry group of the circle as a complex curve?

Published on 02 Mar 2015 - 20:01

73

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Problem with a calculation using homogeneous coordinates

Published on 02 Mar 2015 - 20:29

535

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Projective Transformations on Polynomials

Published on 02 Mar 2015 - 22:30

1.5k

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How to think Grassmannian as a projective variety?

Published on 25 Mar 2026 - 21:48

464

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Weil does not imply Cartier on variety $X$.

Published on 07 Mar 2015 - 20:52

354

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$d+1$ distinct points of a rational normal curve in $\mathbb{P}^{d}$ are linearly independent

Published on 08 Mar 2015 - 11:38

195

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Why 9 points determine a quadric

Published on 08 Mar 2015 - 19:51

59

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Slice, projection, contour: A terminology question.

Published on 11 Mar 2015 - 8:37

342

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poles and zeros of function field of $\mathbb{P}^1$.

Published on 25 Mar 2026 - 14:27

2.6k

Views

What this notation $\mathbb R^3 \setminus (0, 0, 0)$ means?

Published on 30 Mar 2026 - 8:31

List Question

Projection is a projective map

If I wanted to drive due west around the earth would I need to turn my steering wheel?

Prove two parallel lines intersect at infinity in $\mathbb{RP}^3$

Show that the real projective line, P1, is orientable

Intersection of lines in projective space

What is the symmetry group of the circle as a complex curve?

Problem with a calculation using homogeneous coordinates

Projective Transformations on Polynomials

How to think Grassmannian as a projective variety?

Weil does not imply Cartier on variety $X$.

$d+1$ distinct points of a rational normal curve in $\mathbb{P}^{d}$ are linearly independent

Why 9 points determine a quadric

Slice, projection, contour: A terminology question.

poles and zeros of function field of $\mathbb{P}^1$.

What this notation $\mathbb R^3 \setminus (0, 0, 0)$ means?

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