#19405: Add lyapunov_rank() method for polyhedral cones
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Reporter: mjo | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.10
Component: geometry | Resolution:
Keywords: | Merged in:
Authors: Michael Orlitzky | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/mjo/ticket/19405 | 30ea08309c5a63d864c05e5267a35c3a4090c85d
Dependencies: #19368 | Stopgaps:
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Changes (by novoselt):
* branch: u/novoselt/ticket/19405 => u/mjo/ticket/19405
Comment:
I think it would be better to have `solid_restriction` return the original
cone if it is already solid. The amount of time required for the check is
not much compared to constructing a new cone and the advantages are common
sense and being able to reuse all cached data. My version of changes are
posted.
I've also switched to using `cached_method` and changed `==` to `is` in
some tests.
`REFERENCES:` block in `lyapunov_rank` should be reformatted perhaps? Or
is there a reason why some entries are in Spinx notation and others are
not?
Not for this ticket - couldn't you use this more efficient algorithm for
computing the Lyapunov basis as well? I.e. compute it for the restriction
and then modify appropriately to account for the space and trivial
factors?
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Ticket URL: <http://trac.sagemath.org/ticket/19405#comment:18>
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