2015 | OriginalPaper | Chapter
Rational Selecting Relations and Selectors
Authors : Luc Boasson, Olivier Carton
Published in: Language and Automata Theory and Applications
Publisher: Springer International Publishing
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We consider rational relations made of pairs
$$(u,v)$$
of finite words such that
$$v$$
is a subword of
$$u$$
. We show that such a selecting relation can be realized by a transducer such that the output label of each transition is a subword of its input label. We also show that it is decidable whether a given relation has this property.