Mathematician:Robert Berger

Mathematician

American mathematician known for devising the first aperiodic tiling, using a set of $20 \ 426$ distinct tile shapes.

Nationality

American

History

• Born: 1938

Achievements

• 1964: Proved that the Domino Problem is undecidable.
• The first to invent an aperiodic tiling.

Publications

• 1966: The Undecidability of the Domino Problem (Memoirs of the American Mathematical Society Vol. 66: pp. 1 – 7)