Keywords : Hosoya polynomial and Wiener index
AL-Rafidain Journal of Computer Sciences and Mathematics,
Volume 12, Issue 1, Pages 47-59
Let R be a commutative ring with identity. We associate a graph . In this paper, we find Hosoya polynomial and Wiener index of Zn , with n= pm or n= pmq, where p and q are distinct prime numbers and m is an integer with m 2.