Right-Sequential Functions on Infinite Words
Right-Sequential Functions on Infinite Words
复制标题
无限字上的右序函数
DOI:
10.1007/978-3-642-13182-0_9
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Olivier Carton
中科院分区:
文献类型:
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作者:
Olivier Carton
In this paper, we introduce a notion of a right-sequential function on infinite words. The main result is that any rational function is the composition of a right-sequential function and a left-sequential function. This extends a classical result of Elgot and Mezei on finite words to infinite words. We also show that our class of right-sequential functions includes the normalization of real numbers in some base and the truth value of linear temporal logic. Finally, we apply the decomposition theorem to show that automatic sequences are preserved by rational letter-to-letter functions.