#14041: Give the SteenrodAlgebra a proper basis object
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Reporter: cnassau | Owner: jhpalmieri
Type: enhancement | Status: new
Priority: minor | Milestone: sage-5.7
Component: algebraic topology | Keywords: Steenrod algebra
Work issues: | Report Upstream: N/A
Reviewers: | Authors: Christian Nassau
Merged in: | Dependencies: #13856
Stopgaps: |
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In Sage 5.6, the basis of the Steenrod algebra is not quite what it should
be:
{{{#!python
sage: A=SteenrodAlgebra(7)
sage: for k in zip((1,..,5),A.basis()):
....: print k
Traceback (most recent call last):
...
IndexError: tuple index out of range
}}}
The attached patch uses the new `set_from_iterator`-classes to fix this:
{{{#!python
sage: A=SteenrodAlgebra(7)
sage: for (idx,a) in zip((1,..,5),A.basis()):
... print idx, a
1 1
2 Q_0
3 P(1)
4 Q_1
5 Q_0 P(1)
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14041>
Sage <http://www.sagemath.org>
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