#19609: Added image and kernel methods to morphisms of finite-dimensional
modules
with basis
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Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.10
Component: linear algebra | Resolution:
Keywords: kernel, image, | Merged in:
module morphism | Reviewers:
Authors: Travis Scrimshaw | Work issues:
Report Upstream: N/A | Commit:
Branch: | 1f010ecb40f4df3b81aa7162df7a9403c326f4e7
public/categories/image_kernel_module_morphism-19609| Stopgaps:
Dependencies: |
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Comment (by tscrim):
Replying to [comment:10 darij]:
> Travis, could you explain your `__eq__` methods? Are they intended to
fix some issues where e.g. module morphisms were claimed to be equal
because they matched on algebra generators?
I expanded out the `__dict__` comparison. I had at one point used a
`@cached_method` for the kernel basis, which adds stuff to the `__dict__`
and causes problems because of this. (However, because this might depend
on the basis order, I decided to make it non-cached.)
--
Ticket URL: <http://trac.sagemath.org/ticket/19609#comment:11>
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