2 citations · 3 across the 5 of their papers we have counts for
5 papers
Operad Structure of Poset Matrices
Arnauld Mesinga Mwafise, Gi-Sang Cheon, Hong Joon Choi +1
This paper examines operad structures derived from poset matrices by formulating a set of new construction rules for poset matrices. In this direction, eleven different partial com…
Row graphs of Toeplitz matrices
Gi-Sang Cheon, Bumtle Kang, Suh-Ryung Kim +1
In this paper, we study row graphs of Toeplitz matrices. The notion of row graphs was introduced by Greenberg et al. in 1984 and is closely related to the notion of competition gra…
On the zeros of certain Sheffer sequences and their cognate sequences
Gi-Sang Cheon, Tamás Forgács, Khang Tran
Given a Sheffer sequence of polynomials, we introduce the notion of an associated sequence called the cognate sequence. We study the relationship between the zeros of this pair of…
Structural properties of Toeplitz graphs
Seyed Ahmad Mojallal, Ji-Hwan Jung, Gi-Sang Cheon +2
In this paper, we study structural properties of Toeplitz graphs. We characterize -free Toeplitz graphs for an integer and give equivalent conditions for a Toeplitz…
Mutation effects in ordered trees
Gi-Sang Cheon, Hana Kim, Louis W. Shapiro
A mutation will affect an individual and some or all of its descendants. In this paper, we investigate ordered trees with a distinguished vertex called the mutator. We describe var…