Copyright 1997 - Gilles.HUNAULT@univ-angers.fr http://www.info.univ-angers.fr/pub/gh/gh.html
For the moment, i have a few ideas (given by
Daniel Naie) but no algorithmic solution has been found.
This is also the case
for symmetric products.
It should be done for mid-september.
Copyright 1997 - Gilles.HUNAULT@univ-angers.fr http://www.info.univ-angers.fr/pub/gh/gh.html