User Joe Z. - MathOverflow

Joe Z.

Member for 11 years, 6 months
Last seen more than 3 years ago

Toronto, Ontario

3 Questions

Score Activity Newest Views

8 votes

4 answers

2k views

Are there any non-planar graphs containing only K(3,3) as a subgraph that are not 4-colourable?

asked Oct 22, 2012 at 14:58

7 votes

1 answer

255 views

Which Graeco-Latin hypercubes are impossible?

asked Jun 12, 2014 at 17:38

5 votes

1 answer

702 views

$n$ groups of $n$ queens on a toroidal chessboard

asked Oct 8, 2015 at 18:05