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» On finite alphabets and infinite bases
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FOSSACS
2006
Springer
13 years 8 months ago
On Finite Alphabets and Infinite Bases II: Completed and Ready Simulation
We prove that the equational theory of the process algebra BCCSP modulo completed simulation equivalence does not have a finite basis. Furthermore, we prove that with a finite alph...
Taolue Chen, Wan Fokkink, Sumit Nain
CONCUR
2006
Springer
13 years 8 months ago
On Finite Alphabets and Infinite Bases III: Simulation
This paper studies the (in)equational theory of simulation preorder and equivalence over the process algebra BCCSP. We prove that in the presence of a finite alphabet with at least...
Taolue Chen, Wan Fokkink
FOSSACS
2004
Springer
13 years 8 months ago
On Finite Alphabets and Infinite Bases: From Ready Pairs to Possible Worlds
We prove that if a finite alphabet of actions contains at least two elements, then the equational theory for the process algebra BCCSP modulo any semantics no coarser than readines...
Wan Fokkink, Sumit Nain
IANDC
2008
75views more  IANDC 2008»
13 years 4 months ago
On finite alphabets and infinite bases
Taolue Chen, Wan Fokkink, Bas Luttik, Sumit Nain
FOSSACS
2008
Springer
13 years 6 months ago
Optimal Lower Bounds on Regular Expression Size Using Communication Complexity
The problem of converting deterministic finite automata into (short) regular expressions is considered. It is known that the required expression size is 2(n) in the worst case for ...
Hermann Gruber, Jan Johannsen