Just a brief addendum to Alexander's comment. Ákos Seress, Primitive groups with no regular orbits on the set of subsets, Bull. London Math. Soc. 29 (1997), 697-704, identifies primitive groups by their (old) GAP numbers. It is now a bit of work to match them with the new numbers.
In cases like this where the numbering changes, for whatever reason, I think it is important to have a mechanism to match old numbers to new. Peter. > Dear GAP Developers, Dear GAP-Forum, > > I would like to know what the policy is concerning the groups > in the the very useful GAP libraries of transitive permutation groups and > of primitive permutation groups (and any other group library you wish to > comment on) > as regards to any possible changes wihen changes are made in GAP. In > particular, > were the actual groups in the library, their GeneratorsOfGroup, and their > indexing > within the library fixed in perpetuity when the library was initially made > available in GAP4, > and if not, what is the mechanism to alert users to any changes? This is > important > for being able to repeat, check, report on, and extend results made using > specific > groups in a given library. > > Thank you for your help, > Leonard > > _______________________________________________ > Forum mailing list > Forum@mail.gap-system.org > http://mail.gap-system.org/mailman/listinfo/forum > -- This email address will stop working sometime soon. Please use the address pj...@st-andrews.ac.uk instead. _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
