Opened 12 years ago

Last modified 9 years ago

#6588 closed enhancement

Root systems: categorification — at Initial Version

Reported by: nthiery Owned by: mhansen
Priority: major Milestone: sage-5.0
Component: combinatorics Keywords: root systems, categories
Cc: sage-combinat, mshimo@… Merged in:
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Replace the abstract classes in RootSystems? (like RootLatticeRealization?) by categories.

Use it to implement parabolic sub-rootsystems, and parabolic Weyl subgroups.

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