Mathematics – Combinatorics
Scientific paper
2012-02-29
Mathematics
Combinatorics
24 pages
Scientific paper
We give a realization of the infinity crystal for affine sl(2) using decorated polygons. The construction and proof are combinatorial, making use of Kashiwara and Saito's characterization of the infinity crystal in terms of the * involution. The polygons we use have combinatorial properties suggesting they are the analogues in this case of the Mirkovic-Vilonen polytopes defined by Anderson and the third author in finite type. Using Kashiwara's similarity of crystals we also give MV polytopes for $A_2^{(2)}$, the only other rank two affine Kac-Moody algebra.
Baumann Pierre
Dunlap Thomas
Kamnitzer Joel
Tingley Peter
No associations
LandOfFree
Rank 2 affine MV polytopes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Rank 2 affine MV polytopes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rank 2 affine MV polytopes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-523069