#10527: Implementation of quiver mutation type
-----------------------------------------------+----------------------------
       Reporter:  stumpc5                      |         Owner:  sage-combinat
           Type:  enhancement                  |        Status:  needs_review 
       Priority:  major                        |     Milestone:  sage-5.1     
      Component:  combinatorics                |    Resolution:               
       Keywords:  quiver mutation type days38  |   Work issues:               
Report Upstream:  N/A                          |     Reviewers:  Hugh Thomas  
        Authors:  Christian Stump              |     Merged in:               
   Dependencies:  #10349                       |      Stopgaps:               
-----------------------------------------------+----------------------------

Comment (by hthomas):

 Hello, Christian and Nicolas--

 The Cartan matrix for finite type B is the same, whether we go via
 !CartanType or !QuiverMutationType (good, and not a surprise).  However,
 it is transposed compared to what is in Bourbaki (surprise, and probably
 not so good).  The same thing is true of finite type C.

 Is this some difference of choice of convention, or is it a bug?

 (I started looking at affine types, because there seems as if there might
 be some confusion there also, but I guess to begin with, it would be good
 if I understood the convention in finite type.)

 cheers,

 Hugh

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10527#comment:56>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

-- 
You received this message because you are subscribed to the Google Groups 
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to 
[email protected].
For more options, visit this group at 
http://groups.google.com/group/sage-trac?hl=en.

Reply via email to