List questions from affine-geometry

Published on 25 Mar 2026 - 16:01

6.6k

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dimension of quotient space

Published on 13 Sep 2014 - 10:59

3.7k

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Decomposition of shear matrix into rotation & scaling

Published on 14 Sep 2014 - 16:07

379

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Prove that the set of all fixed points is a hyperplane

Published on 16 Sep 2014 - 11:56

455

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Application of Desargues' theorem for constructions

Published on 19 Sep 2014 - 14:55

902

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Surface area of transformed sphere

Published on 23 Sep 2014 - 6:04

675

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Making a matrix full rank through affine transformations

Published on 25 Mar 2026 - 11:09

145

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Distinction between point and vector outside of US ( particularly Germany and Eastern Europe )

Published on 12 Oct 2014 - 2:20

131

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A set $S\subseteq\mathbb{A}^n$ is quasi-affine iff $S=Z\setminus V$ for closed $Z$ and $U$?

Published on 18 Oct 2014 - 6:12

4.6k

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What are sliding vectors mathematically?

Published on 18 Oct 2014 - 16:14

65

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Are quasiaffine subsets of $\mathbb{A}_F^n$ always necessarily open or closed?

Published on 19 Oct 2014 - 6:59

64

Views

Finding a line $L\subset V(y-xz)\subset\mathbb A^3_k$

Published on 19 Oct 2014 - 17:18

439

Views

Express a point as an affine combination of another two points(3D collinearity)

Published on 22 Oct 2014 - 10:37

61

Views

Why is every open in $\mathbb{A}^1$ necessarily principal?

Published on 26 Oct 2014 - 3:52

338

Views

The number of $(d-1)$-faces in a $d$-polytope is at least $(d+1)$

Published on 25 Mar 2026 - 23:39

List Question

How to orthogonalize a set of 2x2 matrices?

dimension of quotient space

Decomposition of shear matrix into rotation & scaling

Prove that the set of all fixed points is a hyperplane

Application of Desargues' theorem for constructions

Surface area of transformed sphere

Making a matrix full rank through affine transformations

Distinction between point and vector outside of US ( particularly Germany and Eastern Europe )

A set $S\subseteq\mathbb{A}^n$ is quasi-affine iff $S=Z\setminus V$ for closed $Z$ and $U$?

What are sliding vectors mathematically?

Are quasiaffine subsets of $\mathbb{A}_F^n$ always necessarily open or closed?

Finding a line $L\subset V(y-xz)\subset\mathbb A^3_k$

Express a point as an affine combination of another two points(3D collinearity)

Why is every open in $\mathbb{A}^1$ necessarily principal?

The number of $(d-1)$-faces in a $d$-polytope is at least $(d+1)$

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