Article ID Journal Published Year Pages File Type
419764 Discrete Applied Mathematics 2009 5 Pages PDF
Abstract

A subset S⊆V(G)S⊆V(G) is independent if no two vertices of SS are adjacent in GG. In this paper we study the number of independent sets in graphs with two elementary cycles. In particular we determine the smallest number and the largest number of these sets among nn-vertex graphs with two elementary cycles. The extremal values of the number of independent sets are described using Fibonacci numbers and Lucas numbers.

Related Topics
Physical Sciences and Engineering Computer Science Computational Theory and Mathematics
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