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Altered Wiener Indices of Thorn Trees

Damir Vukičević
Bo Zhou
Nenad Trinajstić

Fulltext: english, pdf (139 KB) pages 283-285 downloads: 554* cite
APA 6th Edition
Vukičević, D., Zhou, B. & Trinajstić, N. (2007). Altered Wiener Indices of Thorn Trees. Croatica Chemica Acta, 80 (2), 283-285. Retrieved from
MLA 8th Edition
Vukičević, Damir, et al. "Altered Wiener Indices of Thorn Trees." Croatica Chemica Acta, vol. 80, no. 2, 2007, pp. 283-285. Accessed 26 May 2020.
Chicago 17th Edition
Vukičević, Damir, Bo Zhou and Nenad Trinajstić. "Altered Wiener Indices of Thorn Trees." Croatica Chemica Acta 80, no. 2 (2007): 283-285.
Vukičević, D., Zhou, B., and Trinajstić, N. (2007). 'Altered Wiener Indices of Thorn Trees', Croatica Chemica Acta, 80(2), pp. 283-285. Available at: (Accessed 26 May 2020)
Vukičević D, Zhou B, Trinajstić N. Altered Wiener Indices of Thorn Trees. Croatica Chemica Acta [Internet]. 2007 [cited 2020 May 26];80(2):283-285. Available from:
D. Vukičević, B. Zhou and N. Trinajstić, "Altered Wiener Indices of Thorn Trees", Croatica Chemica Acta, vol.80, no. 2, pp. 283-285, 2007. [Online]. Available: [Accessed: 26 May 2020]

Three modifications of the Wiener index W(G) of a structure G have been recently proposed: the λ-modified Wiener index,the λ-variable and the λ-altered Wiener index. (Formulas in attached fulltext) For a given positive integer k, explicit formulae are available for calculating the k-modified Wiener index and the k-variable Wiener index of a thorn tree by means of the i-modified Wiener indices and the i-variable Wiener indices, respectively, of the parent tree for integers i and k with 0 ≤ i ≤ k. It is pointed out in the present report that this is not the case of the k-altered Wiener index.

Wiener index; altered Wiener index; modified Wiener index; variable Wiener index; thorn tree

Hrčak ID: 12869


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