Distance-based graph invariants of trees and the Harary index
نویسندگان
چکیده
منابع مشابه
Distance-based Graph Invariants of Trees and the Harary Index
Introduced in 1947, the Wiener index W (T ) = ∑ {u,v}⊆V (T ) d(u, v) is one of the most thoroughly studied chemical indices. The extremal structures (in particular, trees with various constraints) that maximize or minimize the Wiener index have been extensively investigated. The Harary index H(T ) = ∑ {u,v}⊆V (T ) 1 d(u,v) , introduced in 1993, can be considered as the “reciprocal analogue” of ...
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ژورنال
عنوان ژورنال: Filomat
سال: 2013
ISSN: 0354-5180
DOI: 10.2298/fil1301041w