Abstract
The vertex PI index is a distance-based molecular structure descriptor, that recently found numerous chemical applications. In this letter we obtain a lower bound on the vertex PI index of a connected graph in terms of number of vertices, edges, pendent vertices, and clique number, and characterize the extremal graphs.
| Original language | English |
|---|---|
| Pages (from-to) | 1583-1587 |
| Number of pages | 5 |
| Journal | Filomat |
| Volume | 27 |
| Issue number | 8 |
| DOIs | |
| State | Published - 2013 |
Keywords
- Clique number
- Graph
- Lower bound
- Vertex PI index