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arXiv · 1409.4113

Rotation Remainders

Philip Jameson Graber
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Abstract

We study properties of an array of numbers, called "the triangle," in which each row is formed by rotating all the numbers in the previous row to the left by $m$ positions in cyclical fashion, then appending a number to the end of the row. We show that a number's position in the triangle is uniquely determined by the infinite sequence of column positions--called "rotation remainders"--which we track as the number repeatedly rotates back to the first $m$ columns. The rotation remainders can be viewed as the digits in a "base $m/(m+1)$" expansion in an "$m$-adic" topological ring of a number encoding a given position in the triangle. Properties of these expansions are used to prove interesting claims about the triangle, such as the aperiodicity of any sequence of rotation remainders.

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Philip Jameson Graber. 2014-09-14. Rotation Remainders. https://arxiv.org/abs/1409.4113

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