List questions from combinatorial-geometry

Published on 07 Mar 2017 - 3:49

314

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Rearranging rows of a matrix

Published on 07 Mar 2017 - 21:13

417

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Formalizing outline of combinatorial proof of Brouwer fixed point theorem

Published on 08 Mar 2017 - 21:00

388

Views

Understanding Ky Fan's Lemma

Published on 09 Mar 2017 - 20:52

59

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Linear bound on maximal rectangle in a permutation

Published on 12 Mar 2017 - 7:33

86

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Non-platonic solid graphs.

Published on 14 Mar 2017 - 17:38

310

Views

In any set of 9 points in $\mathbb{R}^2$ a convex pentagon exists

Published on 17 Mar 2017 - 8:06

355

Views

"Clockwise" order of n-dimensional simplices

Published on 25 Mar 2026 - 23:36

154

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covering an annulus with unit cubes

Published on 24 Mar 2017 - 19:19

59

Views

Maximal set of points covered by lines

Published on 26 Mar 2017 - 16:22

35

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Given an $M\times N$ lattice of points, is there a formula to generate the maximum number of intersections, i.e. if all of the points were connected.

Published on 27 Mar 2017 - 4:51

157

Views

Bass-Serre definition of "split" vs Extension definition of "split"

Published on 01 Apr 2017 - 21:31

573

Views

Grassmanians and Plucker embedding

Published on 01 Apr 2017 - 23:44

39

Views

Acute triangles in space.

Published on 09 Apr 2017 - 8:44

204

Views

Number of rectangles generated by $n$ points in the plane

Published on 17 Feb 2023 - 8:22

List Question

Number of points of $\mathbb{P}^n$ over $\mathbb{F}_p$

Rearranging rows of a matrix

Formalizing outline of combinatorial proof of Brouwer fixed point theorem

Understanding Ky Fan's Lemma

Linear bound on maximal rectangle in a permutation

Non-platonic solid graphs.

In any set of 9 points in $\mathbb{R}^2$ a convex pentagon exists

"Clockwise" order of n-dimensional simplices

covering an annulus with unit cubes

Maximal set of points covered by lines

Given an $M\times N$ lattice of points, is there a formula to generate the maximum number of intersections, i.e. if all of the points were connected.

Bass-Serre definition of "split" vs Extension definition of "split"

Grassmanians and Plucker embedding

Acute triangles in space.

Number of rectangles generated by $n$ points in the plane

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