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PI Polynomial of V-Phenylenic Nanotubes and Nanotori
The Organization for Educational Research and Planning (OERP), Iran
Department of Mathematics, Islamic Azad University, Garmsar Branch, Garmsar, Iran
Department of Mathematics and Statistics, Shahid Beheshti University, Tehran, Iran
* Author to whom correspondence should be addressed.
Received: 22 October 2007; in revised form: 26 November 2007 / Accepted: 4 December 2007 / Published: 28 February 2008
Abstract: The PI polynomial of a molecular graph is defined to be the sum X|E(G)|−N(e) + |V(G)|(|V(G)|+1)/2 − |E(G)| over all edges of G, where N(e) is the number of edges parallel to e. In this paper, the PI polynomial of the phenylenic nanotubes and nanotori are computed. Several open questions are also included.
Keywords: PI polynomial; molecular graph; phenylenic nanotube and nanotorus.
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Alamian, V.; Bahrami, A.; Edalatzadeh, B. PI Polynomial of V-Phenylenic Nanotubes and Nanotori. Int. J. Mol. Sci. 2008, 9, 229-234.
Alamian V, Bahrami A, Edalatzadeh B. PI Polynomial of V-Phenylenic Nanotubes and Nanotori. International Journal of Molecular Sciences. 2008; 9(3):229-234.
Alamian, Vahid; Bahrami, Amir; Edalatzadeh, Behrooz. 2008. "PI Polynomial of V-Phenylenic Nanotubes and Nanotori." Int. J. Mol. Sci. 9, no. 3: 229-234.