• Title of article

    On the harmonic index of graph operations

  • Author/Authors

    -، - نويسنده Don Bosco Institute of Technology, Bangalore-78, India Shwetha Shetty, B. , -، - نويسنده Dept.of Mathematics, VSK University,Bellary Karnataka Lokesha, V. , -، - نويسنده Don Bosco Institute of Technology, Bangalore-78, India Ranjini, P. S.

  • Issue Information
    فصلنامه با شماره پیاپی 0 سال 2015
  • Pages
    10
  • From page
    5
  • To page
    14
  • Abstract
    -
  • Abstract
    ‎The harmonic index of a connected graph $G$‎, ‎denoted by $H(G)$‎, ‎is‎ ‎defined as $H(G)=sum_{uvin E(G)}frac{2}{d_u+d_v}$‎ ‎where $d_v$ is the degree of a vertex $v$ in G‎. ‎In this paper‎, ‎expressions for the Harary indices of the‎ ‎join‎, ‎corona product‎, ‎Cartesian product‎, ‎composition and symmetric difference of graphs are‎ ‎derived‎.  
  • Journal title
    Transactions on Combinatorics
  • Serial Year
    2015
  • Journal title
    Transactions on Combinatorics
  • Record number

    2344004