#14958: Implement pseudo-Conway polynomials
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Reporter: pbruin | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.12
Component: finite rings | Resolution:
Keywords: Conway polynomial | Merged in:
sd51 | Reviewers: Jean-Pierre Flori,
Authors: David Roe, Jean- | Peter Bruin
Pierre Flori | Work issues:
Report Upstream: N/A | Dependencies: #14833, #14957
Branch: |
Stopgaps: |
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Comment (by pbruin):
Replying to [comment:11 jpflori]:
> The last patch renames some classes, methods and functions.
>
> It also fixes doctests and documentation.
These changes all look good to me.
Actually, I realised that we never call `irreducible_element(n, algorithm
='pseudo-conway')` in #8335, so it is not even necessary to allow this
parameter. In fact, it may cause confusion, since creating a single
pseudo-Conway polynomial really only makes sense in the context of a
lattice. Without that, a pseudo-Conway polynomial is nothing more than a
primitive polynomial!
I confess that I never got around to learning what exactly `weakref` does,
until now. I just read the relevant parts of
[http://www.python.org/dev/peps/pep-0205/] and see why we may have to be
careful. I think this question is mostly relevant to #8335, so let's not
move that discussion here; let me just say for now that I agree that
`weakref` does not appear to be the ideal solution to our caching problem.
--
Ticket URL: <http://trac.sagemath.org/ticket/14958#comment:12>
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