John Palmieri has made the follow remark on trac: Regarding RestrictedPartitions: see #12278<http://trac.sagemath.org/sage_trac/ticket/12278>. Should it be deprecated at all? In particular, what's the replacement for something like RestrictedPartitions(5,[3,2,1], 3)? The best I can come up with is
[p for p in Partitions(5, parts_in=[3,2,1]) if len(p) == 3] but surely this isn't ideal. As John says, currently #13072 removes restricted partitions entirely because these functions/classed were marked for deprecation two or three years ago. This was before I had ever looked at sage and I assumed that this discussion had already been had and that it has already been decided that these classes were not required. I am happy to reinstate RestrictedPartitions if people need them. Please let me know. As an aside, from the point of modular representation theory the name of these functions is unfortunate as for any one working with symmetric groups a p-restricted partition is a partition for which the difference of its consecutive pars is always strictly less than p. These partitions index the irreducible representations of the symmetric group in characteristic p and, more generally, the irreducible representations of the Hecke algebra of the symmetric group at a pth root of unity (for p any positive integer). More generally, there are p-restricted weights in Lie theory. Andrew -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To view this discussion on the web visit https://groups.google.com/d/msg/sage-combinat-devel/-/2AIhN3cQzZIJ. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
