#4539: plural wrapper
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Reporter: burcin | Owner: OleksandrMotsak, AlexanderDreyer
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.7.2
Component: algebra | Keywords: libsingular plural wrapper sd10
sd23.5 sd24 sd34
Work_issues: | Upstream: N/A
Reviewer: Simon King | Author: Michael Brickenstein, Burcin
Erocal, Oleksandr Motsak, Alexander Dreyer, Simon King
Merged: | Dependencies: #11068 #11316 #11856
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Comment(by OleksandrMotsak):
Replying to [comment:94 SimonKing]:
> If I am not mistaken, `SCA` is a special case in Singular anyway, and it
is a huge difference whether one works in an `SCA` or in an isomorphic
general g-algebra quotient (Oleksandr, could you tell how the ring should
be created in this case? I guess the function `SCA` in the patch does not
do the right thing).
SCA structure is _autodetected_ upon creation of a GR-algebra (`qring`) in
runtime. Therefore one should not use an extra method for this: just
create a GRing and its quotient by correct twosided ideal there.
Test: if SCA implementation is used then `y*y == 0;` for each non-
commutative (odd degree) variable `y`.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4539#comment:95>
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