activity
20242026
collaborators

10 papers

math.CO2026

Anti-Ramsey Numbers for Spanning Linear Forests of 3-Vertex Paths and Matchings

Ali Ghalavand, Xueliang Li

A subgraph in an edge-colored graph is called rainbow if all its edges have distinct colors. For a graph and an integer , the anti-Ramsey number is the maximum num…

math.CO2025

On Neutral Edge Sets in Anti-Ramsey Numbers

Ali Ghalavand, Qing Jie, Zemin Jin +2

The anti-Ramsey number of a graph , introduced by Erdős et al.\ in 1975, is the maximum number of colors in an edge-coloring of the complete graph that avoids a rainbow c…

math.CO2025

On the Anti-Ramsey Number Under Edge Deletion

Ali Ghalavand, Qing Jie, Zemin Jin +2

According to a study by Erdős et al. in 1975, the anti-Ramsey number of a graph \(G\), denoted as \(AR(n, G)\), is defined as the maximum number of colors that can be used in an e…

math.CO2025

On the local metric dimension of -free graphs

Ali Ghalavand, Xueliang Li

Let \( G \) be a graph with order \( n(G) \geq 5 \), local metric dimension \( \dim_l(G) \), and clique number \( ω(G) \). In this paper, we investigate the local metric dimension…

math.CO2025

On Maximum Induced Forests of the Balanced Bipartite Graphs

Ali Ghalavand, Xueliang Li

The decycling number of a graph is the minimum number of vertices that must be removed to eliminate all cycles in . The forest number is the maximum numbe…

math.CO2025

On a Conjecture about Comparing the First and Second Zagreb Indices of Graphs

Ali Ghalavand

Let be a graph with order , size , first Zagreb index , and second Zagreb index . More than twenty years ago, it was conjectured that $\frac{M_1(G)}…