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Int. J. Mol. Sci. 2008, 9(2), 131-144; doi:10.3390/ijms9020131
Article

Computing the Szeged and PI Indices of VC5C7[p,q] and HC5C7[p,q] Nanotubes

1,* , 1
 and
2
1 Department of Mathematics, Tarbiat Modares University, P. O. Box: 14115-137, Tehran, Iran 2 Department of Mathematics, Payame Noor University, Takestan/Gazvin, 3481699445, Iran
* Author to whom correspondence should be addressed.
Received: 27 August 2007 / Revised: 21 September 2007 / Accepted: 15 October 2007 / Published: 5 February 2008
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Abstract

In this paper we give a GAP program for computing the Szeged and the PI indices of any graph. Also we compute the Szeged and PI indices of VC5C7[p,q] and HC5C7[p,q] nanotubes by this program.
Keywords: Szeged index; PI-index; nanotubes; Gap programming. Szeged index; PI-index; nanotubes; Gap programming.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Iranmanesh, A.; Alizadeh, Y.; Taherkhani, B. Computing the Szeged and PI Indices of VC5C7[p,q] and HC5C7[p,q] Nanotubes. Int. J. Mol. Sci. 2008, 9, 131-144.

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