#15300: Weyl and Clifford Algebras
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Reporter: tscrim | Owner: tscrim
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.2
Component: algebra | Resolution:
Keywords: days54 | Merged in:
Authors: Travis Scrimshaw | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
public/algebras/weyl_clifford-15300| a1628e2d1a83460b7e2aa09664265afd5f847730
Dependencies: #16037 | Stopgaps:
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Comment (by darij):
Any idea what to do about this?
{{{
sage: Q = QuadraticForm(ZZ, 3, [1,2,3,4,5,6])
sage: Qp = QuadraticForm(Integers(3), 3, [1,2,3,4,5,6])
sage: Cl = CliffordAlgebra(Q)
sage: Clp = CliffordAlgebra(Qp)
sage: a = Cl.basis()[(1,2)]
sage: a
e1*e2
sage: Clp(a) # so far so good
e1*e2
sage: Clp(3*a) # but now
0*e1*e2
sage: Clp(3*a) == 0 # not good!
False
}}}
I wouldn't be surprised if other covariant functors had the same bug...
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Ticket URL: <http://trac.sagemath.org/ticket/15300#comment:49>
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