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Hosoya and Merrifield-Simmons indices of some classes of corona of two graphs | ||
Transactions on Combinatorics | ||
مقاله 1، دوره 1، شماره 4، اسفند 2012، صفحه 1-7 اصل مقاله (431.64 K) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22108/toc.2012.1946 | ||
نویسندگان | ||
Mohammad Hossein Reyhani* 1؛ Saeid Alikhani2؛ Mohammad Ali Iranmanesh2 | ||
1Islamic Azad University, Yazd branch | ||
2Yazd University | ||
چکیده | ||
Let $G=(V,E)$ be a simple graph of order $n$ and size $m$. An $r$-matching of $G$ is a set of $r$ edges of $G$ which no two of them have common vertex. The Hosoya index $Z(G)$ of a graph $G$ is defined as the total number of its matchings. An independent set of $G$ is a set of vertices where no two vertices are adjacent. The Merrifield-Simmons index of $G$ is defined as the total number of the independent sets of $G$. In this paper we obtain Hosoya and Merrifield-Simmons indices of corona of some graphs. | ||
کلیدواژهها | ||
matching؛ Hosoya؛ Merrifield-Simmons index؛ corona | ||
مراجع | ||
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