#13215: Skew polynomials
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Reporter: caruso | Owner: tbd
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-7.3
Component: algebra | Resolution:
Keywords: skew polynomials | Merged in:
Authors: Xavier Caruso | Reviewers: Burcin Erocal
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/arpitdm/skew_polynomials | e189fec13d005a7fba39a429876c501fe95c05da
Dependencies: #13214, #13303, | Stopgaps:
#13640, #13641, #13642 |
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Comment (by arpitdm):
Hi David,
The `name` and `names` that we had agreed upon changing to
`variable_names` is giving a problem I did not notice until I was testing
stuff today. I think the reason they exist is not just to facilitate
multi-variate rings but also to support the diamond bracket notation.
`S.<x> = SkewPolynomialRing(R, sigma)` and without it gives TypeError
(unexpected keyword argument). Also, this is a syntax present in other
ring constructors in Sage. And while we don't support multivariate rings
for Skew Polynomials, perhaps this feature might be added later on and we
do need the diamond notation. Is there an alternate way in Sage to capture
the diamond bracket or should we revert back to the original?
--
Ticket URL: <https://trac.sagemath.org/ticket/13215#comment:71>
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