Question

Proving upper bounds on quantity and incidence number of distinct lines that pass through at least k points of a set of n points in the plane.

score 578 · Answer 1 · 2026-03-27 22:03:55

578

Views

Proving upper bounds on quantity and incidence number of distinct lines that pass through at least k points of a set of n points in the plane.

Published on 27 Mar 2026 - 22:03

score 150 · Answer 2 · 2026-03-27 22:04:48

150

Views

Show that n points in the plane determine at most O(n$ ^{7/3}$) triangles that have a given fixed angle α.

Published on 27 Mar 2026 - 22:04

score 74 · Answer 3 · 2017-10-08 15:44:08

74

Views

dividing unit square onto infinitely many rectangles

Published on 08 Oct 2017 - 15:44

score 20 · Answer 4 · 2017-10-15 07:04:41

20

Views

Bound for the number of neighbors regions

Published on 15 Oct 2017 - 7:04

score 41 · Answer 5 · 2017-10-22 10:07:40

41

Views

Is it possible to position the circles so that their centers would locate on one line?

Published on 22 Oct 2017 - 10:07

score 45 · Answer 6 · 2026-03-27 23:38:24

45

Views

Optimal algorithm of a separating hyperplane

Published on 27 Mar 2026 - 23:38

score 256 · Answer 7 · 2017-10-29 09:44:01

256

Views

$2n+1$ segments on a line

Published on 29 Oct 2017 - 9:44

score 792 · Answer 8 · 2026-03-27 23:37:46

792

Views

The central ideas in Hales's proof of the Honeycomb conjecture.

Published on 27 Mar 2026 - 23:37

score 763 · Answer 9 · 2026-03-28 00:50:50

763

Views

On existence of boards that be covered by every free tetromino

Published on 28 Mar 2026 - 0:50

score 88 · Answer 10 · 2026-03-27 23:35:57

88

Views

Listing the elements of a covering for a closed disk by open disks

Published on 27 Mar 2026 - 23:35

score 281 · Answer 11 · 2017-11-11 00:13:53

281

Views

Hadwiger–Nelson problem 5 colors needed if color sets are Lesbeauge measureable

Published on 11 Nov 2017 - 0:13

score 346 · Answer 12 · 2017-11-19 18:30:02

346

Views

Distribution of all point to point distances on a square $L \times L$ lattice?

Published on 19 Nov 2017 - 18:30

score 52 · Answer 13 · 2017-11-21 18:43:37

52

Views

Can you determine set of points from their point-to-point vectors?

Published on 21 Nov 2017 - 18:43

score 225 · Answer 14 · 2017-11-24 16:07:39

225

Views

Cases where ANY 2 of 3 +/- choices select one of four possible elements

Published on 24 Nov 2017 - 16:07

score 1.6k · Answer 15 · 2017-11-26 07:06:44

1.6k

Views

Intuition for why Costas arrays of order $n$ fail to undergo combinatorial explosion.

Published on 26 Nov 2017 - 7:06

List Question

Proving upper bounds on quantity and incidence number of distinct lines that pass through at least k points of a set of n points in the plane.

Show that n points in the plane determine at most O(n$ ^{7/3}$) triangles that have a given fixed angle α.

dividing unit square onto infinitely many rectangles

Bound for the number of neighbors regions

Is it possible to position the circles so that their centers would locate on one line?

Optimal algorithm of a separating hyperplane

$2n+1$ segments on a line

The central ideas in Hales's proof of the Honeycomb conjecture.

On existence of boards that be covered by every free tetromino

Listing the elements of a covering for a closed disk by open disks

Hadwiger–Nelson problem 5 colors needed if color sets are Lesbeauge measureable

Distribution of all point to point distances on a square $L \times L$ lattice?

Can you determine set of points from their point-to-point vectors?

Cases where ANY 2 of 3 +/- choices select one of four possible elements

Intuition for why Costas arrays of order $n$ fail to undergo combinatorial explosion.

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