Abstract
The forbidding and enforcing paradigm was introduced by Ehrenfeucht and Rozenberg as a way to define families of languages based on two sets of boundary conditions. Later, a variant of this paradigm was considered where an fe-system defines a single language. We investigate this variant further by studying fe-systems in which both the forbidding and enforcing sets are finite and show that they define regular languages. We prove that the class of languages defined by finite fe-systems is strictly between the strictly locally testable languages and the class of locally testable languages.
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Notes
- 1.
It is called the k-local universal automaton in [16].
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This paper was started when the first author was visiting Leiden University, while on sabbatical from UNF. The authors thank both institutions for making this possible.
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Genova, D., Hoogeboom, H.J. (2017). Finite Language Forbidding-Enforcing Systems. In: Kari, J., Manea, F., Petre, I. (eds) Unveiling Dynamics and Complexity. CiE 2017. Lecture Notes in Computer Science(), vol 10307. Springer, Cham. https://doi.org/10.1007/978-3-319-58741-7_25
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DOI: https://doi.org/10.1007/978-3-319-58741-7_25
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