Volume 5, Issue 2 (11-2010)                   IJMSI 2010, 5(2): 61-68 | Back to browse issues page


XML Print


Abstract:  

We present explicit formulae for the eccentric connectivity index and Wiener index of 2-dimensional square and comb lattices with open ends. The formulae for these indices of 2-dimensional square lattices with ends closed at themselves are also derived. The index for closed ends case divided by the same index for open ends case in the limit N →&infin defines a novel quantity we call compression factor. This factor was calculated for both eccentric connectivity and Wiener index for 2- dimensional square lattice.

Type of Study: Research paper | Subject: General