Results 251 to 260 of about 11,756,121 (296)

Comprehensive Characterization of Acorns from Selected <i>Quercus</i> Species: Nutritional Composition, Phytochemical Profile and Potential Relevance to Swine Nutrition. [PDF]

open access: yesMolecules
Zwyrzykowska-Wodzińska A   +11 more
europepmc   +1 more source

Ordering chemical trees by Wiener polarity index

Applied Mathematics and Computation, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ali Reza Ashrafi, Ali Ghalavand
exaly   +4 more sources

Extremal values of vertex-degree-based topological indices of chemical trees

Applied Mathematics and Computation, 2020
One important topic in chemical graph theory is the extremal value problem of vertex-degree-based topological indices over chemical trees. It is our main goal in this paper to unify many of these results in one general theorem which captures the common ...
Juan Rada, Roberto Cruz, Juan Monsalve
exaly   +2 more sources

A note on chemical trees with minimum Wiener polarity index

Applied Mathematics and Computation, 2018
The Wiener polarity index (usually denoted by Wp) of a graph G is defined as the number of unordered pairs of the vertices of G which are at distance 3. Denote by CTn the family of all n-vertex chemical trees. In a recent paper, Ashrafi and Ghalavand [1]
Zhibin Du, Akbar Ali
exaly   +2 more sources

A Linear Algorithm for the Hyper-Wiener Index of Chemical Trees

open access: yesJournal of Chemical Information and Computer Sciences, 1999
An algorithm with a complexity linear in the number of vertices is proposed for the computation of the Hyper-Wiener index of chemical trees. This complexity is the best possible.
R. Aringhieri, P. Hansen, F. Malucelli
semanticscholar   +5 more sources

A Collective Property of Trees and Chemical Trees

Journal of Chemical Information and Computer Sciences, 1998
The Wiener index (W) and the Hosoya polynomial (H) have been calculated for all trees (and thus for all chemical trees) with 20 and fewer vertices. Corroborating an earlier observation (Razinger, M. et al. J. Chem. Inf. Comput. Sci. 1985, 25, 23−27), we show that the ability of W to distinguish between nonisomorphic n-vertex trees (respectively ...
M. Lepović, I. Gutman
semanticscholar   +3 more sources

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