Opened 12 years ago
Last modified 7 years ago
#5590 new enhancement
coercion between polynomial rings over extension fields and polynomial rings over the prime subfield
Reported by: | malb | Owned by: | malb |
---|---|---|---|
Priority: | major | Milestone: | sage-6.4 |
Component: | commutative algebra | Keywords: | coercion, polynomial ring |
Cc: | was | Merged in: | |
Authors: | Reviewers: | ||
Report Upstream: | Work issues: | ||
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description
At #5569 William wrote:
As a challenge to Martin -- can you improve Sage so this decimal string conversion (which could be a killer show stopper if the ideal had huge elements) isn't needed, and instead one can use a homomorphism?
The situation William is talking about is this:
sage: K.<a> = GF(2^3) sage: P.<x,y> = PolynomialRing(K) sage: R = PolynomialRing(GF(2),3,'a,x,y')
and we are looking for a way to convert elements in P
to elements in R
.
Change History (4)
comment:1 Changed 8 years ago by
- Milestone changed from sage-5.11 to sage-5.12
comment:2 Changed 7 years ago by
- Milestone changed from sage-6.1 to sage-6.2
comment:3 Changed 7 years ago by
- Milestone changed from sage-6.2 to sage-6.3
comment:4 Changed 7 years ago by
- Milestone changed from sage-6.3 to sage-6.4
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