Nicolas, My vote for tensor products is that I really want any instance of ModulesWithBasis(R).TensorProducts() to be an instance of ModulesWithBasis(R), to automatically have the module methods to use, etc.
There is something bothering me. Just now I had an annoying bug. I made an instance of a subclass of CombinatorialFreeModule_Tensor (which is a subclass of CombinatorialFreeModule) which, despite being apparently properly __init__ed with a tensor category, did not have the basis method of CFM. Then I __init__ed with the tensor category joined with the module category, and lo and behold, the basis method appeared. Why didn't usual lexical inheritance supply the basis method? --Mark > On Thu, Apr 03, 2014 at 09:59:39AM -0400, Mark Shimozono wrote: > > Removing this made a difference. > > I made a TensorUnit class that was of this type, > > but not made by the usual tensor construction, > > and it needed the above definition to know it had a basis. > > Oh, you are right, sorry! I misread the code. I though > TensorProductsCategory was a subclass of > RegressiveCovariantConstructionCategory. Hmm, back to the discussion > about option (a) or (b). The same question arises for > CartesianProducts; do we want it to be regressive, like is the case > of Quotients and the like. It's not exactly the same use case. > > Cheers, > Nicolas > -- > Nicolas M. Thiéry "Isil" <nthi...@users.sf.net> > http://Nicolas.Thiery.name/ > > -- > You received this message because you are subscribed to the Google Groups > "sage-combinat-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-combinat-devel+unsubscr...@googlegroups.com. > To post to this group, send email to sage-combinat-devel@googlegroups.com. > Visit this group at http://groups.google.com/group/sage-combinat-devel. > For more options, visit https://groups.google.com/d/optout. > > -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel. For more options, visit https://groups.google.com/d/optout.
