ENTCS
2002
13 years 4 months ago
2002
We show that the basic feasible functions of Cook and Urquhart's BFF [8,9] are precisely the functionals definable in a natural system of ramified recurrence that uses type i...
CP
2007
Springer
13 years 11 months ago
2007
Springer
Symmetry is an important factor in solving many constraint satisfaction problems. One common type of symmetry is when we have symmetric values. We can eliminate such value symmetr...