26 citations · 87 across the 46 of their papers we have counts for
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math.CO2010★ 4 cited
Combinatorics on permutation tableaux of type and type
Sylvie Corteel, Jang Soo Kim
We give another bijective proof of a result of Corteel and Nadeau. We find a generating function related to unrestricted columns of permutation tableaux. As a consequence, we obtai…
math.CO2010
A note on 2-distant noncrossing partitions and weighted Motzkin paths
Ira M. Gessel, Jang Soo Kim
We prove a conjecture of Drake and Kim: the number of -distant noncrossing partitions of is equal to the sum of weights of Motzkin paths of length , where the…
math.CO2010
Combinatorial rigidity of 3-dimensional simplicial polytopes
Suyoung Choi, Jang Soo Kim
A simplicial polytope is combinatorially rigid if its combinatorial structure is determined by its graded Betti numbers which are important invariant coming from combinatorial comm…