Robert

Robert Berger

#22,965
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American mathematician

Robert Berger 's Academic­Influence.com Rankings

Robert Berger
Mathematics
#2912
World Rank
#4393
Historical Rank
#1121
USA Rank
Group Theory
#537
World Rank
#628
Historical Rank
#107
USA Rank
mathematics Degrees
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Why Is Robert Berger Influential?

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According to Wikipedia, Robert Berger is an applied mathematician, known for discovering the first aperiodic tiling using a set of 20,426 distinct tile shapes. Contributions to tiling theory The unexpected existence of aperiodic tilings, although not Berger's explicit construction of them, follows from another result proved by Berger: that the so-called domino problem is undecidable, disproving a conjecture of Hao Wang, Berger's advisor. The result is analogous to a 1962 construction used by Kahr, Moore, and Wang, to show that a more constrained version of the domino problem was undecidable.

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