Journal article

More hyperenergetic molecular graphs

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Author list: Moulton, Vincent

Publication year: 2000

Start page: 571

End page: 575

Number of pages: 5

ISSN: 0352-5139

View additional information: View in Web of Science


Abstract

If G is a molecular graph and lambda(1), lambda(2),... lambda(n) are its eigenvalues, then the energy of G is equal to E(G) = \lambda(1)\+ \lambda(2)\+... + \lambda(n)\. This energy cannot exceed the value n root(n - 1) approximate to n(3/2). The graph G is said to be hyperenergetic if E(G) > 2n - 2. We describe the construction of hyperenergetic graphs G for which E(G) approximate to 1/2 n(3/2).


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