List questions from projective-geometry

Published on 09 Dec 2011 - 22:30

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Lat/Long grid points covered by projecting rectangle onto sphere

Published on 29 Mar 2026 - 19:16

280

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How to show $\mu(\overline{\mathbb{R}}) = \overline{\mathbb{R}}$ iff $a, b, c, d \in \mathbb{R}$ for $\mu(z) = \frac{az+b}{cz+d}$?

Published on 21 Dec 2011 - 18:51

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Are morphisms between projective spaces required to be injective?

Published on 01 Apr 2026 - 18:47

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Augmented Reality Transformation Matrix Optimization

Published on 05 Jan 2012 - 14:18

227

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How to show that the image of a certain projective embedding is an algebraic curve?

Published on 02 Apr 2026 - 7:06

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Example for projective geometry used in quantum mechanics

Published on 02 Apr 2026 - 9:12

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Prerequisite of Projective Geometry for Algebraic Geometry

Published on 29 Mar 2026 - 8:35

228

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Chain Rule and Homogenous Coordinates

Published on 28 Feb 2012 - 11:11

240

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Explicitly writing out all elements of $\mathbb{P}^{1}(\mathbb{F}_{n})$

Published on 28 Feb 2012 - 20:34

1.5k

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Extension of regular function

Published on 05 Mar 2012 - 12:30

724

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How to draw a great circle of a sphere？

Published on 15 Mar 2012 - 2:06

666

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What is the equation for a cone in $\mathbb{RP}^3$?

Published on 01 Apr 2026 - 18:49

176

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Intersection of a cone $x^2+y^2-z^2$ and a generic plane in $\mathbb{RP}^3$

Published on 01 Apr 2026 - 18:56

459

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Do four projected lines from a square?

Published on 02 Apr 2012 - 19:07

List Question

Prove that $f$ is not a projectivity

Lat/Long grid points covered by projecting rectangle onto sphere

How to show $\mu(\overline{\mathbb{R}}) = \overline{\mathbb{R}}$ iff $a, b, c, d \in \mathbb{R}$ for $\mu(z) = \frac{az+b}{cz+d}$?

Are morphisms between projective spaces required to be injective?

Augmented Reality Transformation Matrix Optimization

How to show that the image of a certain projective embedding is an algebraic curve?

Example for projective geometry used in quantum mechanics

Prerequisite of Projective Geometry for Algebraic Geometry

Chain Rule and Homogenous Coordinates

Explicitly writing out all elements of $\mathbb{P}^{1}(\mathbb{F}_{n})$

Extension of regular function

How to draw a great circle of a sphere？

What is the equation for a cone in $\mathbb{RP}^3$?

Intersection of a cone $x^2+y^2-z^2$ and a generic plane in $\mathbb{RP}^3$

Do four projected lines from a square?

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