List questions from projective-space

Published on 24 Mar 2026 - 23:48

85

Views

Parametrize a Variety in Projective Space

Published on 25 Mar 2026 - 1:22

236

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27 lines on a cubic as an intersection with a hypersurface

Published on 11 Mar 2018 - 19:24

58

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Following the definiton of projection matrix

Published on 22 Mar 2026 - 7:38

522

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Grassmannian $G(2,3)$ homeomorphic to the projective plane $\mathbb{P}_{\mathbb{R}}^2$

Published on 23 Mar 2026 - 0:08

1.3k

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Primitive cohomology (problems with intuition)

Published on 19 Mar 2018 - 11:20

310

Views

Smooth cubic curve is union of line and conic

Published on 19 Mar 2018 - 22:55

228

Views

Universal hypersurface is a quasi-projective variety

Published on 24 Mar 2018 - 20:38

146

Views

Are the affine and projective spaces $k^n$ and $P^n(k)$ , homeomorphic w.r.t. to the Zariski topology on them?

Published on 25 Mar 2026 - 1:18

361

Views

On "homogeneous" height and "homogeneous" Krull-dimension?

Published on 25 Mar 2026 - 9:02

37

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Why are elements of a projective Hilbert space called "rays" instead of "lines"?

Published on 30 Mar 2018 - 1:58

118

Views

Well-formedness of hypersurfaces in weighted projective space

Published on 06 Apr 2018 - 15:53

950

Views

Canonical projection is open - Projective Space

Published on 25 Mar 2026 - 9:07

932

Views

Holomorphic 1-form on Projective Curve

Published on 25 Mar 2026 - 1:22

47

Views

About $H^0(\mathcal{O}_X(-k))$ where $X$ is a curve on $\mathbb{P}^3$

Published on 24 Mar 2026 - 23:45

List Question

Projective Variety of a Quadric is Tangent to x=0

Parametrize a Variety in Projective Space

27 lines on a cubic as an intersection with a hypersurface

Following the definiton of projection matrix

Grassmannian $G(2,3)$ homeomorphic to the projective plane $\mathbb{P}_{\mathbb{R}}^2$

Primitive cohomology (problems with intuition)

Smooth cubic curve is union of line and conic

Universal hypersurface is a quasi-projective variety

Are the affine and projective spaces $k^n$ and $P^n(k)$ , homeomorphic w.r.t. to the Zariski topology on them?

On "homogeneous" height and "homogeneous" Krull-dimension?

Why are elements of a projective Hilbert space called "rays" instead of "lines"?

Well-formedness of hypersurfaces in weighted projective space

Canonical projection is open - Projective Space

Holomorphic 1-form on Projective Curve

About $H^0(\mathcal{O}_X(-k))$ where $X$ is a curve on $\mathbb{P}^3$

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