Hi again! Is the promotion operator on arbitrary tableaux already in sage? I think I once implemented the promotion operator on rectangular tableaux as
sage: t = Tableau([[1,2],[2,3]]) sage: t.promotion(2) [[1, 2], [3, 3]] sage: t [[1, 2], [2, 3]] There is also a strange promotion_operator which seems to add boxes to a tableau, but there is no explanation what it does. Perhaps it is a misnomer? def promotion_operator(self, i): """ EXAMPLES:: sage: t = Tableau([[1,2],[3]]) sage: t.promotion_operator(1) [[[1, 2], [3], [4]], [[1, 2], [3, 4]], [[1, 2, 4], [3]]] sage: t.promotion_operator(2) [[[1, 1], [2, 3], [4]], [[1, 1, 2], [3], [4]], [[1, 1, 4], [2, 3]], [[1, 1, 2, 4], [3]]] sage: Tableau([[1]]).promotion_operator(2) [[[1, 1], [2]], [[1, 1, 2]]] sage: Tableau([[1,1],[2]]).promotion_operator(3) [[[1, 1, 1], [2, 2], [3]], [[1, 1, 1, 2], [2], [3]], [[1, 1, 1, 3], [2, 2]], [[1, 1, 1, 2, 3], [2]]] TESTS:: sage: Tableau([]).promotion_operator(2) [[[1, 1]]] sage: Tableau([]).promotion_operator(1) [[[1]]] Best, Anne -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. 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.