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Tag Archives: affine space
Picture of an isomorphism
We spent a very busy and enjoyable weekend with Hans Hockey, a statistician who lives in Hamilton, and his family. When we arrived, Hans showed me a picture he had taken, of the 81 SET cards laid out on a … Continue reading
Posted in exposition
Tagged affine space, coordinates, Hans Hockey, isomorphism, Set, Sudoku
1 Comment
Kirkman’s schoolgirls and their friends
Often it happens that, when I think about a hard problem, I am absolutely convinced that I know what the answer will be, but I merely lack a proof. In this post I want to discuss a problem which I … Continue reading
Posted in exposition, open problems
Tagged affine space, hyperoval, partition, projective plane, Steiner system, Thomas Kirkman
5 Comments
