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arXiv 2207.00533math.CO
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算术级数中的T型四格骨牌(T-tetrominos)

T-Tetrominos in Arithmetic Progression

Emily Feller, Robert Hochberg

AI总结:

本文针对T-tetrominos铺砌矩形的经典结论,研究所有合法铺砌中必然存在的有序性程度,以骨牌算术级数的长度作为有序性度量标准。

摘要:

D. Walkup的一项著名结论是,一个m×n矩形可以用T-tetrominos铺砌当且仅当m和n均为4的倍数。该结论的“充分性”部分可以通过铺砌一个4×4块、再复制该块填满矩形来证明,但这会得到规则的周期性铺砌。本文研究了用T-tetrominos铺砌矩形时,每一种铺砌中必须存在多少“有序性”,我们以骨牌的算术级数长度来度量有序性。

英文摘要:

A famous result of D. Walkup is that an $m\times n$ rectangle may be tiled by T-tetrominos if and only if both $m$ and $n$ are multiples of 4. The "if" portion may be proved by tiling a $4\times 4$ block, and then copying that block to fill the rectangle; but, this leads to regular, periodic tilings. In this paper we investigate how much "order" must be present in every tiling of a rectangle by T-tetrominos, where we measure order by length of arithmetic progressions of tiles.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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