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Showing 2021 · math.MGShow all
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math.MG2021
Forcing nonperiodic tilings with one tile using a seed
Bernhard Klaassen
The so-called "einstein problem" (a pun playing with the famous scientist's name and the German term "ein Stein" for "one stone") asks for a simply connected prototile only allowin…
math.MG2021★ 1 cited
Is the spiral effect psychological?
Bernhard Klaassen
In 2017 a definition of spiral tilings was given, thereby answering a question posed by Grünbaum and Shephard in the late 1970s. The author had the pleasure to discuss the topic vi…