#18767: Integrable Representations of Twisted Affine Lie algebras
-------------------------------------+-------------------------------------
Reporter: bump | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.9
Component: combinatorics | Resolution:
Keywords: Integrable | Merged in:
Representations, Twisted Affine | Reviewers: Travis Scrimshaw
Lie Algebras | Work issues:
Authors: Daniel Bump, | Commit:
Valentin Buciumas | 3966f09d89f5d0c66eb6f803f1a91efd3e0bd979
Report Upstream: N/A | Stopgaps:
Branch: |
public/combinat/twisted_affine-18767|
Dependencies: |
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Comment (by tscrim):
I've done my reviewer changes, and I obtained some good speed
improvements:
{{{
sage: Lambda =
RootSystem(['A',5,2]).weight_lattice(extended=true).fundamental_weights()
sage: V = IntegrableRepresentation(Lambda[0]+Lambda[1]+Lambda[3])
sage: %time V.print_strings()
...
CPU times: user 3.14 s, sys: 28.5 ms, total: 3.16 s
Wall time: 3.11 s
sage: Lambda =
RootSystem(['A',8,2]).weight_lattice(extended=true).fundamental_weights()
sage: V = IntegrableRepresentation(Lambda[0]+Lambda[3])
sage: %time V.print_strings()
...
CPU times: user 8.66 s, sys: 44.2 ms, total: 8.7 s
Wall time: 8.66 s
}}}
Before:
{{{
sage: Lambda =
RootSystem(['A',5,2]).weight_lattice(extended=true).fundamental_weights()
sage: V = IntegrableRepresentation(Lambda[0]+Lambda[1]+Lambda[3])
sage: %time V.print_strings()
...
CPU times: user 3.6 s, sys: 35.7 ms, total: 3.64 s
Wall time: 3.57 s
sage: Lambda =
RootSystem(['A',8,2]).weight_lattice(extended=true).fundamental_weights()
sage: V = IntegrableRepresentation(Lambda[0]+Lambda[3])
sage: %time V.print_strings()
...
CPU times: user 10 s, sys: 68.6 ms, total: 10.1 s
Wall time: 10 s
}}}
If you happy with my changes, then you can set a positive review.
--
Ticket URL: <http://trac.sagemath.org/ticket/18767#comment:11>
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