A note on the number of squares in a word

A note on the number of squares in a word
复制标题

关于单词中的方格数量的注释

DOI:
10.1016/j.tcs.2007.03.025
复制
发表时间:
2007
期刊:
Theor. Comput. Sci.
影响因子:
--
通讯作者:
Lucian Ilie
Lucian Ilie
中科院分区:
--
文献类型:
--
作者:
Lucian Ilie

文献摘要

被引文献

相似文献

Fraenkel和Simpson [A.S.辛普森(J. Simpson)的《一个字符串可以包含多少个正方形?》(How many squares can a string contain?J. Combin。Theory Ser. A 82(1998)112-120]证明了长度为n的字的平方数有2n的界。在本注记中,我们将此界改进为2n-Θ(logn)。基于数值证据,约束界为n。
Fraenkel and Simpson [A.S. Fraenkel, J. Simpson, How many squares can a string contain? J. Combin. Theory Ser. A 82 (1998) 112–120] proved that the number of squares in a word of length n is bounded by 2n. In this note we improve this bound to 2n−Θ(logn). Based on the numerical evidence, the conjectured bound is n.