List questions from projective-space

Published on 28 Mar 2026 - 7:51

3.1k

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QR factorization for least squares

Published on 27 May 2016 - 3:10

397

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Definition of regular map from aquasi projective variety

Published on 28 May 2016 - 19:26

1.4k

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Sum of projection vectors

Published on 04 Jun 2016 - 12:51

279

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Bounding the number of points at infinity of a curve of degree $n$.

Published on 06 Jun 2016 - 21:46

316

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Preimage of a simply closed curve under the two-dimensional antipodal map

Published on 30 Mar 2026 - 12:00

66

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Do finite groups act admissibly on separated schemes of finite type over k

Published on 20 Jun 2016 - 15:13

247

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Isomorphisms and orthogonality in projective space.

Published on 29 Mar 2026 - 6:28

1k

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How to find the transition function for two overlapping charts of $\mathbb{R}P^2$?

Published on 26 Jun 2016 - 11:27

29

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Existence of map between projective planes.

Published on 29 Jun 2016 - 2:16

402

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Why is this isomophism of $PGL(2,\mathbb{Z})$ with a Coxeter group injective?

Published on 26 Mar 2026 - 1:03

80

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"Projective" quotient of $\Bbb{Z}^2$

Published on 30 Jun 2016 - 12:12

156

Views

Expressing a hypersurface of a variety as zero locus

Published on 30 Jun 2016 - 21:49

196

Views

Rational Maps $\mathbb{P}^n \rightarrow \mathbb{P}^m$

Published on 02 Jul 2016 - 8:34

82

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orhogonal projection

Published on 04 Jul 2016 - 2:06

List Question

Verifying that the weighted projective space $\Bbb{P}_{\Bbb{Q}}(1,1,2,3)$ is singular.

QR factorization for least squares

Definition of regular map from aquasi projective variety

Sum of projection vectors

Bounding the number of points at infinity of a curve of degree $n$.

Preimage of a simply closed curve under the two-dimensional antipodal map

Do finite groups act admissibly on separated schemes of finite type over k

Isomorphisms and orthogonality in projective space.

How to find the transition function for two overlapping charts of $\mathbb{R}P^2$?

Existence of map between projective planes.

Why is this isomophism of $PGL(2,\mathbb{Z})$ with a Coxeter group injective?

"Projective" quotient of $\Bbb{Z}^2$

Expressing a hypersurface of a variety as zero locus

Rational Maps $\mathbb{P}^n \rightarrow \mathbb{P}^m$

orhogonal projection

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