Domains play an integral role in linguistic theories. This paper combines locality domains with current models of the computational complexity of phonology. The first result is that if a specific formalism – strictly piecewise grammars – is supplemented with a mechanism to enforce first-order definable domain restrictions, its power increases so much that it subsumes almost the full hierarchy of subregular languages. However, if domain restrictions are based on linguistically natural intervals, we instead obtain an empirically more adequate model. On the one hand, this model subsumes only those subregular classes that have been argued to be relevant for phonotactic generalisations. On the other hand, it excludes unnatural generalisations that involve counting or elaborate conditionals. It is also shown that strictly piecewise grammars with interval-based domains are theoretically learnable, unlike those with arbitrary, first-order domains.

中文翻译：

---

地方域在音韵学中的力量

领域在语言理论中起着不可或缺的作用。本文将局部域与当前的语音计算复杂性模型相结合。第一个结果是，如果一个特定的形式——严格的分段文法——补充了一种机制来强制执行一阶可定义域限制，它的力量就会增加很多，以至于它几乎包含了子正规语言的全部层次结构。然而，如果域限制基于语言自然区间，我们反而会获得一个经验上更合适的模型。一方面，该模型仅包含那些被认为与语音泛化相关的子规则类。另一方面，它排除了涉及计数或复杂条件的非自然概括。