Randić structure of a graph
✍ Scribed by Juan Rada; Carlos Uzcátegui
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 198 KB
- Volume
- 128
- Category
- Article
- ISSN
- 0166-218X
No coin nor oath required. For personal study only.
✦ Synopsis
Let G be a collection of graphs with n vertices. We present a simple description of [G] = {H ∈ G: (H ) = (G)} where denotes the Randià c index. We associate to G a Q-linear map : Q m → Q k (for some integers k; m depending on G) such that the kernel of contains the necessary information to describe [G] in terms of linear equations. These results provide precise tools for analyzing the behavior of on a collection of graphs.
📜 SIMILAR VOLUMES
## Abstract The generalized Randić; index ${R}\_{-\alpha}(T)$ of a tree __T__ is the sum over the edges ${u}{v}$ of __T__ of $(d(u)d(v))^{-\alpha}$ where ${d}(x)$ is the degree of the vertex __x__ in __T__. For all $\alpha > 0$, we find the minimal constant $\beta\_{0}=\beta\_{0}(\alpha)$ such that
Benzenoid hydrocarbons are studied in terms of the much simpler caterpillar trees. Using molecular connectivity indices of the latter almost exact linear relations are obtained with natural logarithms of live properties of benzenoid hydrocarbons including all self-avoiding paths, conjugated circuits