#19397: Add support for homogeneous components of a filtered module
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Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.10
Component: categories | Resolution:
Keywords: | Merged in:
Authors: Travis Scrimshaw | Reviewers: John Palmieri
Report Upstream: N/A | Work issues:
Branch: | Commit:
public/categories/homogeneous_components-19397|
14f6a2843145309abe777e37ac2c96b8e5984d9a
Dependencies: #17096 | Stopgaps:
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Comment (by tscrim):
This will definitely do as a workaround. We should add an additional check
to make sure `self._indices` is finite and raise an error if not,
otherwise the fallback for `homogeneous_component_basis` will run forever.
Although if we are changing error messages, I think we should also change
that `assert` to raise a `ValueError` on input because it is checking user
input (and I like the convention that an `assert` is something that is
expected to always be true).
Minor point, but I don't think this import is needed anymore
{{{
from sage.categories.category_with_axiom import
CategoryWithAxiom_over_base_ring
}}}
We will also need a follow-up ticket creating the proper (sub)category
with an explanation that it causes an MRO failure.
--
Ticket URL: <http://trac.sagemath.org/ticket/19397#comment:35>
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