8 citations · 11 across the 5 of their papers we have counts for
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math.CO2013★ 1 cited
Criteria of valid line sum arrays for multidimensional matrices
Hyun Kwang Kim, Joon Yop Lee
Gale and Ryser found a criterion for existence of a binary matrix with given row and column sums. Mirsky extended the theorem of Gale and Ryser to -ary matrices. In this paper,…
math.CO2012
Identities of Eulerain and ordered Stirling numbers over a multiset
Joon Yop Lee
By considering Eulerian numbers and ordered Stirling numbers of the second and third kinds over a multiset, we generalize identities of Eulerian numbers and Stirling numbers of the…
math.CO2011★ 8 cited
Poly-Bernoulli numbers and lonesum matrices
Hyun Kwang Kim, Denis S. Krotov, Joon Yop Lee
A lonesum matrix is a matrix that can be uniquely reconstructed from its row and column sums. Kaneko defined the poly-Bernoulli numbers by a generating function, and Br…