List questions from projective-geometry

Published on 18 Sep 2014 - 12:54

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Showing angles are preserved by isometry.

Published on 19 Sep 2014 - 7:04

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Determining 3D position of point from 2D projection.

Published on 19 Sep 2014 - 9:19

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What is the plane gradient?

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Application of Desargues' theorem for constructions

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Whitehead's axioms of projective geometry

Published on 26 Mar 2026 - 23:09

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Whitehead's axioms of projective geometry and a vector space over a field

Published on 26 Mar 2026 - 23:11

133

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Module over a ring which satisfies Whitehead's axioms of projective geometry

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Module over an associative ring with unity and axioms of projective geometry

Published on 26 Mar 2026 - 23:09

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Hyperplanes as dual projective spaces

Published on 23 Sep 2014 - 0:25

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Why is $\phi:\mathbb{P}^n\rightarrow \mathbb{P}^m$ constant if dim $\phi(\mathbb{P}^n)<n$?

Published on 28 Mar 2026 - 15:26

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CP(2) = SU(3)/U(2)?

Published on 24 Sep 2014 - 20:57

172

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Bounding the cohomology of a smooth projective variety

Published on 04 Oct 2014 - 18:17

36

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Can projective spaces be given structure of a linear space.

Published on 05 Oct 2014 - 16:59

761

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Conic through 4 points

Published on 06 Oct 2014 - 18:22

List Question

Description of real projective spaces in various contexts

Showing angles are preserved by isometry.

Determining 3D position of point from 2D projection.

What is the plane gradient?

Application of Desargues' theorem for constructions

Whitehead's axioms of projective geometry

Whitehead's axioms of projective geometry and a vector space over a field

Module over a ring which satisfies Whitehead's axioms of projective geometry

Module over an associative ring with unity and axioms of projective geometry

Hyperplanes as dual projective spaces

Why is $\phi:\mathbb{P}^n\rightarrow \mathbb{P}^m$ constant if dim $\phi(\mathbb{P}^n)<n$?

CP(2) = SU(3)/U(2)?

Bounding the cohomology of a smooth projective variety

Can projective spaces be given structure of a linear space.

Conic through 4 points

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