Open Access Open Access  Restricted Access Subscription or Fee Access

y-Wiener index of some graph operations

Saihua Liu, Jianping Ou, Youchuang Lin


Eliasi and Taeri [Extension of the Wiener index and Wiener polynomial, Appl. Math. Lett. 21 (2008), 916-921] introduced the concept of y-Wiener index of graphs as a generalization of the classical Wiener index and hyper Wiener index of graphs. This paper presents explicit expressions of y-Wiener index of graphs constructed by some operations such as Mycielski’s construction, generalized hierarchical product and F-sum of graphs.


Mycielski’s construction, F-sum, generalized hierarchical product, y-Wiener index.

Full Text:


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information. Also: DOI is paid service which provided by a third party. We never mentioned that we go for this for our any journal. However, journal have no objection if author go directly for this paid DOI service.