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CORR
2010
Springer
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13 years 11 months ago
Deciding the finiteness of the number of simple permutations contained in a wreath-closed class is polynomial
We present an algorithm running in time O(n log n) which decides if a wreathclosed permutation class Av(B) given by its finite basis B contains a finite number of simple permutati...
Frédérique Bassino, Mathilde Bouvel,...
FOSSACS
2006
Springer
14 years 3 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
14 years 3 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