#2855 closed defect (duplicate)
A correction to the weight of crystal elements for type A and a speedup for all types
Reported by: | bump | Owned by: | mhansen |
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Priority: | minor | Milestone: | sage-duplicate/invalid/wontfix |
Component: | combinatorics | Keywords: | |
Cc: | sage-combinat | Merged in: | |
Authors: | Reviewers: | ||
Report Upstream: | Work issues: | ||
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description
For Cartan Types 'A' a problem with the weight function of crystals was described here:
http://groups.google.com/group/sage-combinat-devel/browse_thread/thread/7cdfe075257ba963?hl=en
The method of correcting this problem was to hard-code the weight in the crystals of letters, and to have the crystals of tensors get the weight of a tensor element by summing the weights of its constituents. This alters the weight for Type A (correcting the defect) and returns the same weight as the old algorithm for other Cartan types.
When the patch was implemented it was found to be 2-3 times faster than the old algorithm.
Change History (3)
comment:1 Changed 13 years ago by
- Resolution set to duplicate
- Status changed from new to closed
comment:2 Changed 13 years ago by
- Milestone changed from sage-3.0 to sage-duplicate/invalid
comment:3 Changed 12 years ago by
- Cc sage-combinat added
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