Opened 7 years ago
Last modified 4 years ago
#17696 new defect
Polynomials over fraction fields incorrectly converted to Singular — at Version 6
Reported by: | jakobkroeker | Owned by: | |
---|---|---|---|
Priority: | major | Milestone: | sage-6.5 |
Component: | interfaces | Keywords: | Singular polynomial interface |
Cc: | SimonKing, malb, swewers | Merged in: | |
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: | #23644 |
Description (last modified by )
Currently, we sometimes lose entries in the denominator when converting to Singular:
sage: k.<a> = GF(11^5) sage: R.<t> = k[] sage: R.<x> = R.fraction_field()[] sage: f = x^4 + 1/(a*t) sage: f._singular_() x^4 sage: g = x^4 + 1/a * 1/t sage: f == g True sage: g._singular_() x^4 + (6*a^4 + 5*a)/t
The issue seems to be with elements in the denominator that are subject to a quotient, i.e., an a
in the denominator in the above example.
Change History (6)
comment:1 Changed 7 years ago by
- Description modified (diff)
comment:2 Changed 7 years ago by
- Stopgaps set to todo
comment:3 Changed 4 years ago by
- Description modified (diff)
- Summary changed from bug in polynomial interface to Singular (in special rings) to Polynomials over fraction fields incorrectly converted to Singular
comment:4 Changed 4 years ago by
- Cc swewers added
comment:5 Changed 4 years ago by
- Stopgaps changed from todo to #23644
comment:6 Changed 4 years ago by
- Description modified (diff)
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