Abstract
It is well known that the language obtained by deleting an arbitrary language from a regular language is regular. We give an upper bound for the state complexity of deleting an arbitrary language from a regular language and a matching lower bound. We show that the state complexity of deletion is (Formula presented.) [respectively, (Formula presented.) ] when using complete (respectively, incomplete) deterministic finite automata. We show that the state complexity of bipolar deletion has an upper bound (Formula presented.) [respectively (Formula presented.) ] when using complete (respectively, incomplete) deterministic finite automata. In both cases we give almost matching lower bounds.
Original language | English |
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Pages (from-to) | 67-85 |
Number of pages | 19 |
Journal | Acta Informatica |
Volume | 53 |
Issue number | 1 |
DOIs | |
State | Published - 1 Feb 2016 |