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DLT
2010
14 years 10 months ago
On the Average Number of States of Partial Derivative Automata
The partial derivative automaton (Apd) is usually smaller than other non-deterministic finite automata constructed from a regular expression, and it can be seen as a quotient of th...
Sabine Broda, António Machiavelo, Nelma Mor...
DLT
2010
14 years 10 months ago
Periodicity in Tilings
Emmanuel Jeandel, Pascal Vanier
DLT
2010
14 years 10 months ago
Around Dot Depth Two
It is known that the languages definable by formulae of the logics FO2[<,S], 2[<,S], LTL[F,P,X,Y] are exactly the variety DAD. Automata for this class are not known, nor is i...
Kamal Lodaya, Paritosh K. Pandya, Simoni S. Shah