It is not perhaps easier, but an alternative way that I have used to calculate orbit decompsitions it to use
from sage.groups.perm_gps.partn_ref.refinement_graphs import get_orbits This works just by casting your group action as a subset of the permutation group action on the set. To define the action I (quite slowly) just acted via the group and found the corresponding index of the transformed element, so I agree a better way would be useful. On Thursday, April 28, 2022 at 2:09:03 PM UTC+1 axio...@yahoo.de wrote: > I am very frequently using the function > > Signature: orbit_decomposition(L, cyc_act) -> 'list[list]' > Docstring: > Return the orbit decomposition of "L" by the action of "cyc_act". > > INPUT: > > * "L" -- list > * "cyc_act" -- bijective function from "L" to "L" > > OUTPUT: > > * a list of lists, the orbits under the cyc_act acting on "L" > > which I have to import using > > from sage.combinat.cyclic_sieving_phenomenon import orbit_decomposition > > I am guessing that this function might be useful for other people, and > will probably be reimplemented over and over again (it is not hard to do > that, of course). > > My question is: wouldn't it make sense to make it available in an easier > way? if so, how? > > Martin > > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/b56595ec-7576-47fc-a37b-582b61db922en%40googlegroups.com.
