Question

The complement of any projective hyperplane is an affine variety

score 1.1k · Answer 1 · 2026-03-25 21:49:31

1.1k

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The complement of any projective hyperplane is an affine variety

Published on 25 Mar 2026 - 21:49

score 801 · Answer 2 · 2018-01-09 14:38:40

801

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Equivalent definition of the real projective space

Published on 09 Jan 2018 - 14:38

score 509 · Answer 3 · 2026-03-25 19:16:07

509

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GIT-Quotient of $\mathbb{C}^*$ acting on $\mathbb{C}^{m+1}$

Published on 25 Mar 2026 - 19:16

score 1.7k · Answer 4 · 2026-03-25 21:47:29

1.7k

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Classifying Quasi-coherent Sheaves on Projective Schemes

Published on 25 Mar 2026 - 21:47

score 847 · Answer 5 · 2010-07-23 13:46:38

847

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Projective duality

Published on 23 Jul 2010 - 13:46

score 2.4k · Answer 6 · 2010-07-28 01:55:26

2.4k

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Projective plane and its dual

Published on 28 Jul 2010 - 1:55

score 280 · Answer 7 · 2010-09-27 06:15:09

280

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Does projectivizing always fix problems at infinity? (Or, am I making a mistake somewhere?)

Published on 27 Sep 2010 - 6:15

score 2.8k · Answer 8 · 2010-10-05 05:12:18

2.8k

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Orientability of $\mathbb{RP}^3$

Published on 05 Oct 2010 - 5:12

score 244 · Answer 9 · 2011-01-12 10:02:02

244

Views

Deducing characteristics of a map induced by a divisor

Published on 12 Jan 2011 - 10:02

score 166 · Answer 10 · 2011-01-18 06:18:39

166

Views

Projections from $\mathbb{C}^{n+1}$ to $\mathbb{CP}^n$. (check my reasoning)

Published on 18 Jan 2011 - 6:18

score 831 · Answer 11 · 2011-02-28 22:55:56

831

Views

what is the definition of a line in $\mathbb{P}^n(k)$ + how to compute the hilbert polynomial of two intersecting lines?

Published on 28 Feb 2011 - 22:55

score 916 · Answer 12 · 2011-03-29 14:24:29

916

Views

Why is the real projective space $P^n$ equal to both unit sphere $S^n$ and unit ball $B^n$ with identified antipodal points?

Published on 29 Mar 2011 - 14:24

score 395 · Answer 13 · 2011-05-24 10:09:52

395

Views

is there a decomposition of $L_2(q)$ into a direct product?

Published on 24 May 2011 - 10:09

score 498 · Answer 14 · 2011-05-29 07:07:42

498

Views

Showing a (relatively simple) set of polynomial zeros in projective space is irreducible

Published on 29 May 2011 - 7:07

score 305 · Answer 15 · 2011-06-01 00:20:22

305

Views

Projective Plane vs. Reference Plane

Published on 01 Jun 2011 - 0:20

List Question

The complement of any projective hyperplane is an affine variety

Equivalent definition of the real projective space

GIT-Quotient of $\mathbb{C}^*$ acting on $\mathbb{C}^{m+1}$

Classifying Quasi-coherent Sheaves on Projective Schemes

Projective duality

Projective plane and its dual

Does projectivizing always fix problems at infinity? (Or, am I making a mistake somewhere?)

Orientability of $\mathbb{RP}^3$

Deducing characteristics of a map induced by a divisor

Projections from $\mathbb{C}^{n+1}$ to $\mathbb{CP}^n$. (check my reasoning)

what is the definition of a line in $\mathbb{P}^n(k)$ + how to compute the hilbert polynomial of two intersecting lines?

Why is the real projective space $P^n$ equal to both unit sphere $S^n$ and unit ball $B^n$ with identified antipodal points?

is there a decomposition of $L_2(q)$ into a direct product?

Showing a (relatively simple) set of polynomial zeros in projective space is irreducible

Projective Plane vs. Reference Plane

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