Hi there,
I wonder if someone already has code for Postnikov's Le diagrams. These are
fillings of partitions fitting in a box with 0's and 1's with the
additional property that no 0 has a 1 in the same column AND to its left in
the same row.
My aim is to get Le diagrams (or maybe the subclass of
Hi Christian,
I fear I'm going to derail this a bit but I actually care about
hearing answers to these questions...
The way you speak of Le-diagrams, they are fillings of partitions with
0's and 1's. But from a quick look at Postnikov's paper, it seems that
they are better regarded as subsets of
There is a typo at
http://sporadic.stanford.edu/thematic_tutorials/lie/weyl_groups.html
We may ask when this permutation is trivial. If it is nontrivial it induces
an automorphism of the Dynkin diagram, so it must be nontrivial when the
Dynkin diagram has no automorphism. But if there is a
On 1/26/14 1:53 PM, Nicolas M. Thiery wrote:
On Thu, Jan 23, 2014 at 09:55:23AM -0800, Anne Schilling wrote:
It is time to update our poster again! The current poster can be found at
http://combinat.sagemath.org/misc/file/b82a003ca596/articles/2013-01-17-Poster/main.pdf
If you have any
