3 search results - page 1 / 1 » A Bijection for Directed-Convex Polyominoes |
DMCCG
2001
Springer
13 years 9 months ago
2001
Springer
JCT
2010
13 years 3 months ago
2010
The pattern-avoiding fillings of Young diagrams we study arose from Postnikov’s work on positive Grassman cells. They are called Γ -diagrams, and are in bijection with decorate...
JCT
2010
13 years 3 months ago
2010
We propose a major index statistic on 01-fillings of moon polyominoes which, when specialized to certain shapes, reduces to the major index for permutations and set partitions. W...