Changes between Initial Version and Version 2 of Ticket #7729
- Timestamp:
- Dec 18, 2009, 1:47:51 AM (13 years ago)
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Ticket #7729
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Property
Summary
changed from
Iwahori Hecke algebras
toIwahori Hecke algebras [with patch, needs review]
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Property
Summary
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Ticket #7729 – Description
initial v2 17 17 * The get_action method is a kludge to avoid the crash reported in #7725. That crash is fixed by David Roe's patch in #7718, but this patch does not work with the patch in #7718. 18 18 19 * It should be made to work with Affine Weyl groups. I have not checked whether this requires further modification. 20 21 * Subjectively, it seems a little slow compared with a previous implementation for type A only. This is probably a limitation of the {{{WeylGroup()}}} class on which it depends. My earlier implementation was based on Permutation. If it proves unacceptably slow it may be possible to speed it up by a caching scheme. 22 19 23 For some further discussion of this topic see 20 24 http://groups.google.com/group/sage-combinat-devel/browse_thread/thread/78fc23f23cafe705?hl=en 21 25 22 It is well tested for type A and is probably correct for all Cartan Types of finite type. I have not tried it with 23 26 It is well tested for type A and is probably correct for all Cartan Types of finite type.