Ren S.,Northwest University, China |
Ren S.,Tianshui Normal College Tianshui
Match | Year: 2011
Some results with respect to Merrifield-Simmons index of tree-type hexagonal systems are shown. Using these results, the tree-type hexagonal system with lower bound of Merrifield-Simmons index is determined. These results generalize some known results on hexagonal chains and hexagonal spiders.