disjoint_sum

disjoint_sum(*knots, return_relabel_dicts=False, create_using=None)

Return the disjoint sum, k[0] ⊔ k[1] ⊔ … The nodes are relabelled to be “a”, “b”,… or in case of many nodes, 0, 1,… :param create_using: structure type of disjoint sum :param knots: list of components :param return_relabel_dicts: :return: disjoint sum ⊔k