1 citations · 1 across the 2 of their papers we have counts for
3 papers
math.CO2018
On toric ideals arising from signed graphs
JiSun Huh, Sangwook Kim, Boram Park
A signed graph is a pair of a graph and its sign , where a \textit{sign} is a function from to . Note that…
math.CO2009★ 1 cited
Flag enumerations of matroid base polytopes
Sangwook Kim
In this paper, we study flag structures of matroid base polytopes. We describe faces of matroid base polytopes in terms of matroid data, and give conditions for hyperplane splits o…
math.CO2006
Shellable complexes and topology of diagonal arrangements
Sangwook Kim
We prove that if a simplicial complex is shellable, then the intersection lattice for the corresponding diagonal arrangement is homotopy equivalent to a wedge of spheres. Furthermo…