Arnold's cat map
by Vladimir Arnold
A drawing of a cat was used to explain an abstract mathematical transformation. Vladimir Arnold described it in 1967 and that is where its unusual name comes from.
Photo: Claudio Rocchini (CC BY 2.5)
Mathematics advances through definitions, theorems and proofs. It began with the counting and geometry of the ancients. Today it covers curves and graphs studied for their own sake. Some surfaces even defy intuition. Its results later serve physics and computing.
A few cards of the album
The start of their anecdote. The album's other cards are for you to discover in the game.
Chvátal graph
by Václav Chvátal
Twelve vertices, twenty-four edges and not a single triangle. This small graph is much trickier than it looks.
Photo: Koko90 (CC BY-SA 3.0)
Gray graph
by Marion Cameron Gray
A Scottish mathematician was working at American Telephone & Telegraph when she discovered a graph with 54 vertices and 81 edges. Marion Cameron Gray had studied at Edinburgh.
Photo: Koko90 (CC BY-SA 3.0)
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