#19462: LinearCode.is_projective
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Reporter: | Owner:
ncohen | Status: needs_review
Type: | Milestone: sage-6.10
enhancement | Resolution:
Priority: major | Merged in:
Component: | Reviewers:
coding theory | Work issues:
Keywords: | Commit:
Authors: | 4a8d9701a24ab0437ff4e8fbf517bb47443ef425
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
public/19462 |
Dependencies: |
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Comment (by vdelecroix):
One simplification: Since your matrix has coefficient in a field, you can
always normalize the rows. For each of them, choose the first coefficient
which is nonzero, let say `a` and multiply your row by `1/a`. It gives a
canonical representative of the row. Then, you just have to check that
your normalized columns are distinct.
There might be already some code to do that somewhere... let me check.
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Ticket URL: <http://trac.sagemath.org/ticket/19462#comment:4>
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