Jieshan Yang

most citedThe Minimal Total Irregularity of Graphs

5 citations · 8 across the 3 of their papers we have counts for

collaborators

3 papers

math.CO2014★ 5 cited

The Minimal Total Irregularity of Graphs

Yingxue Zhu, Lihua You, Jieshan Yang

In \cite{2012a}, Abdo and Dimitov defined the total irregularity of a graph $G = (V, E)$ as \hskip3.3cm $ir r_{t}$ $(G) = \frac{1}{2} \sum_{u, v \in V} ∣ d_{G} (u) - d_{G} (v) ∣,$ \noindent…

math.CO2013★ 2 cited

Notes on the sum of powers of the signless Laplacian eigenvalues of graphs

Lihua You, Jieshan Yang

For a graph $G$ and a non-zero real number $α$ , the graph invariant $S_{α} (G)$ is the sum of the $α^{t h}$ power of the non-zero signless Laplacian eigenvalues of $G$ . In this paper,…

math.CO2013★ 1 cited

On a conjecture for the signless Laplacian eigenvalues

Lihua You, Jieshan Yang

Let $G$ be a simple graph with $n$ vertices and $e (G)$ edges, and $q_{1} (G) \geq q_{2} (G) \geq \dots \geq q_{n} (G) \geq 0$ be the signless Laplacian eigenvalues of $G .$ Let $S_k^+(G)=\sum_{i=…