52-04 Explicit machine computation and programs (not the theory of computation or programming)
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Keywords
- Mathematisches Problem (1) (remove)
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There are integral heptagons, no three points on a line, no four on a circle
(2007)
- We give two configurations of seven points in the plane, no three points in a line, no four points on a circle with pairwise integral distances. This answers a famous question of Paul Erdös.
