Yufei Zhang

most citedTotal Difference Chromatic Numbers of Graphs

1 citations · 1 across the 2 of their papers we have counts for

collaborators

2 papers

math.CO2022

Totally non-negativity of a family of change-of-basis matrices

David Galvin, Yufei Zhang

Let $a = (a_{1}, a_{2}, \dots, a_{n})$ and $e = (e_{1}, e_{2}, \dots, e_{n})$ be real sequences. Denote by $M_{e \to a}$ the $(n + 1) \times (n + 1)$ matrix whose $(m,k)…

math.GM2019★ 1 cited

Total Difference Chromatic Numbers of Graphs

Ranjan Rohatgi, Yufei Zhang

Inspired by graceful labelings and total labelings of graphs, we introduce the idea of total difference labelings. A $k$ -total labeling of a graph $G$ is an assignment of $k$ disti…