Finite automata and unary languages
Theoretical Computer Science
SIAM Journal on Computing
NFA to DFA transformation for finite languages over arbitrary alphabets
Journal of Automata, Languages and Combinatorics
Two-way automata simulations and unary languages
Journal of Automata, Languages and Combinatorics
State complexity of regular languages
Journal of Automata, Languages and Combinatorics
Introduction To Automata Theory, Languages, And Computation
Introduction To Automata Theory, Languages, And Computation
Optimal Simulations between Unary Automata
SIAM Journal on Computing
Word problems requiring exponential time(Preliminary Report)
STOC '73 Proceedings of the fifth annual ACM symposium on Theory of computing
Nondeterminism and the size of two way finite automata
STOC '78 Proceedings of the tenth annual ACM symposium on Theory of computing
State complexity of basic operations on nondeterministic finite automata
CIAA'02 Proceedings of the 7th international conference on Implementation and application of automata
On the descriptional complexity of finite automata with modified acceptance conditions
Theoretical Computer Science - Descriptional complexity of formal systems
State complexity of some operations on binary regular languages
Theoretical Computer Science - Descriptional complexity of formal systems
Complementing unary nondeterministic automata
Theoretical Computer Science - Descriptional complexity of formal systems
State complexity of shuffle on trajectories
Journal of Automata, Languages and Combinatorics - Special issue: Selected papers of the fourth international workshop on descriptional complexity of formal systems
State Complexity: Recent Results and Open Problems
Fundamenta Informaticae - Contagious Creativity - In Honor of the 80th Birthday of Professor Solomon Marcus
On the existence of prime decompositions
Theoretical Computer Science
State complexity of combined operations
Theoretical Computer Science
Transition complexity of language operations
Theoretical Computer Science
Lower bounds for the transition complexity of NFAs
Journal of Computer and System Sciences
State complexity of basic operations on suffix-free regular languages
Theoretical Computer Science
Estimation of state complexity of combined operations
Theoretical Computer Science
State complexity of union and intersection of finite languages
DLT'07 Proceedings of the 11th international conference on Developments in language theory
State complexity research and approximation
DLT'11 Proceedings of the 15th international conference on Developments in language theory
On the state complexity of combined operations
CIAA'06 Proceedings of the 11th international conference on Implementation and Application of Automata
Lower bounds for the transition complexity of NFAs
MFCS'06 Proceedings of the 31st international conference on Mathematical Foundations of Computer Science
State complexity of concatenation and complementation of regular languages
CIAA'04 Proceedings of the 9th international conference on Implementation and Application of Automata
Prime decompositions of regular languages
DLT'06 Proceedings of the 10th international conference on Developments in Language Theory
Nondeterministic state complexity of star-free languages
Theoretical Computer Science
State Complexity: Recent Results and Open Problems
Fundamenta Informaticae - Contagious Creativity - In Honor of the 80th Birthday of Professor Solomon Marcus
State complexity of basic operations on suffix-free regular languages
MFCS'07 Proceedings of the 32nd international conference on Mathematical Foundations of Computer Science
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We investigate the costs, in terms of states, of operations on infinite and finite unary regular languages where the languages are represented by nondeterministic finite automata. In particular, we consider Boolean operations, concatenation, iteration, and λ-free iteration. Most of the bounds are tight in the exact number of states, i.e. the number is sufficient and necessary in the worst case. For the complementation of infinite languages a tight bound in the order of magnitude is shown.