A simple proof that a word of length n has at most 2n distinct squares
A simple proof that a word of length n has at most 2n distinct squares
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长度为 n 的单词最多有 2n 个不同的方格的简单证明
DOI:
10.1016/j.jcta.2005.01.006
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发表时间:
2005
期刊:
影响因子:
--
通讯作者:
Lucian Ilie
中科院分区:
文献类型:
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作者:
Lucian Ilie
We give a very short proof of a result by Fraenkel and Simpson (J. Combin. Theory, Ser. A 82 (1998) 112) which states that the number of distinct squares in a word of length n is at most 2n.