A Lower Bound for Graph Energy of Fullerenes

  • Morteza Faghani
  • Gyula Y. Katona
  • Ali Reza AshrafiEmail author
  • Fatemeh Koorepazan-Moftakhar
Part of the Carbon Materials: Chemistry and Physics book series (CMCP, volume 9)


A molecular graph is a graph in which vertices are atoms and edges are molecular bonds. These graphs are good mathematical models for molecules. Suppose G is a molecular graph with adjacency matrix A. The graph energy G is defined as the sum of the absolute values of the eigenvalues of A. The aim of this chapter is to describe a method for computing energy of fullerenes. We apply this method for computing a lower bound for energy of an infinite class of fullerene graphs with exactly 12n vertices. Our method is general and can be extended to other class of fullerene graphs.


Centrosymmetric matrix Fullerene graph Energy 


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Morteza Faghani
    • 1
  • Gyula Y. Katona
    • 2
    • 3
  • Ali Reza Ashrafi
    • 5
    • 4
    Email author
  • Fatemeh Koorepazan-Moftakhar
    • 4
    • 5
  1. 1.Department of MathematicsPayam-e Noor UniversityTehranIran
  2. 2.Department of Computer Science and Information TheoryBudapest University of Technology and EconomicsBudapestHungary
  3. 3.MTA-ELTE Numerical Analysis and Large NetworksResearch GroupBudapestHungary
  4. 4.Department of Nanocomputing, Institute of Nanoscience and NanotechnologyUniversity of KashanKashanIran
  5. 5.Department of Pure Mathematics, Faculty of Mathematical SciencesUniversity of KashanKashanIran

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