Opened 12 years ago

Closed 12 years ago

#5830 closed defect (duplicate)

[with patch, not ready for review] reducible root system fixes

Reported by: bump Owned by: bump
Priority: major Milestone: sage-duplicate/invalid/wontfix
Component: combinatorics Keywords:
Cc: sage-combinat Merged in:
Authors: Reviewers:
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The methods simple_roots(), fundamental_weights() and simple_coroots() for the ambient space of a root system are supposed to return a family. This was never correctly implemented for the reducible types, and the patch corrects this.

There are also some changes in, where it was assumed that the root system was irreducible in a few places. The patch corrects this.

The patch is probably correct but I haven't confirmed that it applies cleanly to sage-3.4.1.rc3 or that it passes sage --testall so wait to review.

Change History (1)

comment:1 Changed 12 years ago by mabshoff

  • Milestone changed from sage-combinat to sage-duplicate/invalid/wontfix
  • Resolution set to duplicate
  • Status changed from new to closed

For the record: This is a dupe of #5832.



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