2 citations · 5 across the 5 of their papers we have counts for
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A Recurrence Relation Associated with Unit-Primitive Matrices
Byeong-Gil Choe, Hyeong-Kwan Ju
In this paper we obtained several properties that the characteristic polynomials of the unit-primitive matrix satisfy. In addition, using these properties we have shown that the re…
Different Volume Computation Methods of Graph Polytopes
Daeseok Lee, Hyeong-Kwan Ju
The aim of this work is to introduce several different volume computation methods of the graph polytope associated with various type of finite simple graphs. Among them, we obtaine…
An Extension of hibi's palindromic theorem
Daeseok Lee, Hyeong-Kwan Ju
Hibi showed that the polynomial in the numerator of the Ehrhart series of a reflexive polytope is palindromic. We proved that those in the numerator of the Ehrhart series of every…
Enumeration of 0/1-matrices avoiding some 2x2 matrices
Hyeong-Kwan Ju, Seunghyun Seo
We enumerate the number of 0/1-matrices avoiding 2x2 submatrices satisfying certain conditions. We also provide corresponding exponential generating functions.
On the Enumeration of Certain Weighted Graphs
Miklós Bóna, Hyeong-Kwan Ju, Ruriko Yoshida
We enumerate weighted graphs with a certain upper bound condition. We also compute the generating function of the numbers of these graphs, and prove that it is a rational function.…