(456) 1

Part of 1995 Tournament Of Towns

Problems(1)

TOT 456 1995 Spring S A1 sphere passing through only 1 rational point

Source:

Does there exist a sphere passing through only one rational point? (A rational point is a point whose Cartesian coordinates are all rational numbers.)
(A Rubin)

geometrycombinatoricsanalytic geometryrationalcombinatorial geometry