User pi66

18 votes

1 answer

2k views

Function of two sets intersection

asked Oct 11, 2018 at 20:15

18 votes

3 answers

648 views

Tic-tac-toe with one mark type

asked Mar 14, 2021 at 14:59

10 votes

1 answer

201 views

Disjoint sets with twice ratio

asked Jul 19, 2020 at 16:58

9 votes

1 answer

400 views

Maximize sum of products of binary variable

asked Oct 9, 2017 at 14:16

8 votes

2 answers

3k views

Product of arithmetic progressions

asked Oct 15, 2018 at 8:17

8 votes

1 answer

337 views

Partition of 4-tuples

asked Aug 21, 2018 at 19:16

8 votes

2 answers

274 views

Two rows of bounded numbers

asked Dec 10, 2019 at 7:02

7 votes

1 answer

306 views

Changing tiles by swapping squares

asked Sep 25, 2019 at 23:43

7 votes

1 answer

361 views

Function of two sets

asked Mar 13, 2021 at 13:19

7 votes

3 answers

263 views

Shrinking subset and product

asked Oct 17, 2020 at 4:54

7 votes

0 answers

293 views

4-tuples with close sums

asked Nov 10, 2018 at 20:44

7 votes

1 answer

380 views

Kneser graph with overlap

asked Jul 10, 2017 at 21:10

6 votes

1 answer

238 views

Permutation function based on subsets

asked Oct 30, 2020 at 23:55

6 votes

1 answer

439 views

Large dominating sets in tournaments

asked May 16, 2019 at 17:47

5 votes

1 answer

257 views

Positioning ice-cream stands on a street

asked Apr 13, 2021 at 1:32

4 votes

0 answers

144 views

Image of function contains identity elements

asked Jul 4, 2020 at 7:06

4 votes

2 answers

370 views

Simpler combinatorial proof for special case of Kneser's conjecture

asked Jul 13, 2017 at 22:33

4 votes

1 answer

164 views

Low difference between sums of blocks

asked Nov 3, 2016 at 5:20

4 votes

1 answer

236 views

Understanding proof about chromatic number

asked Oct 9, 2018 at 19:01

3 votes

2 answers

1k views

Bound that random walk stays within with constant probability?

asked Nov 24, 2015 at 18:37

3 votes

0 answers

80 views

Find four sets of coins with similar weights

asked Aug 24, 2017 at 22:33

3 votes

1 answer

287 views

Filling cups and buckets continuously

asked Oct 21, 2021 at 13:49

3 votes

1 answer

214 views

Unique maximum degree in tournament

asked Mar 2, 2020 at 8:10

2 votes

0 answers

68 views

Minimum transitive dominating subtournament

asked May 28, 2019 at 7:36

2 votes

2 answers

109 views

Difference between two largest degrees

asked Feb 26, 2020 at 19:19

2 votes

0 answers

37 views

Binary law on pairs of finite unions of segments

asked Oct 9, 2020 at 6:51

2 votes

1 answer

248 views

Minimum dominating sets in tournaments

asked Nov 16, 2017 at 10:14

2 votes

0 answers

131 views

Tuples with same coordinate sum

asked Oct 28, 2018 at 20:20

2 votes

1 answer

190 views

Vertex reachability in directed graph

asked Mar 2, 2019 at 10:28

1 vote

0 answers

148 views

Arithmetic progression of rationals

asked Oct 24, 2018 at 11:53

Stack Exchange Network

36 Questions

Function of two sets intersection

Tic-tac-toe with one mark type

Disjoint sets with twice ratio

Maximize sum of products of binary variable

Product of arithmetic progressions

Partition of 4-tuples

Two rows of bounded numbers

Changing tiles by swapping squares

Function of two sets

Shrinking subset and product

4-tuples with close sums

Kneser graph with overlap

Permutation function based on subsets

Large dominating sets in tournaments

Positioning ice-cream stands on a street

Image of function contains identity elements

Simpler combinatorial proof for special case of Kneser's conjecture

Low difference between sums of blocks

Understanding proof about chromatic number

Bound that random walk stays within with constant probability?

Find four sets of coins with similar weights

Filling cups and buckets continuously

Unique maximum degree in tournament

Minimum transitive dominating subtournament

Difference between two largest degrees

Binary law on pairs of finite unions of segments

Minimum dominating sets in tournaments

Tuples with same coordinate sum

Vertex reachability in directed graph

Arithmetic progression of rationals