Results 131 to 140 of about 4,205,626 (161)

The Szeged and the Wiener index of graphs

open access: yesApplied Mathematics Letters, 1996
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Ivan Gutman, Sandi Klavžar
exaly   +2 more sources
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On the difference between the Szeged index and the Wiener index of cacti

Discrete Applied Mathematics, 2022
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Min Wang, Mengmeng Liu
openaire   +3 more sources

Szeged index of hollow hexagons

International Journal of Quantum Chemistry, 2023
AbstractThe Szeged index of a connected graph () is a well known distance based topological index. A primitive coronoid system is a coronoid system formed by a single chain in a macro‐cyclic arrangement consisting of linearly and angularly annelated hexagons. The angular hexagons are called corners. A hollow hexagon is a primitive coronoid system with
Carolina Lopera, Roberto Cruz
openaire   +1 more source

The vertex PI index and Szeged index of bridge graphs

open access: yesDiscrete Applied Mathematics, 2009
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Toufik Mansour, Matthias Schork
exaly   +2 more sources

On the Szeged–Sombor Index of Graphs

Mathematical Notes
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Alex, L., Das, K. C.
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The Szeged index of fasciagraphs

MATCH : communications in mathematical and in computer chemistry, 2003
Let G**n be a graph which is obtained from a path Pn by replacing each vertex by a fixed graph G and replacing each edge by a fixed set of edges joining the corresponding copies of G. A matrix approach to the computation of distance-based invariants which gives a general procedure to obtain closed-form expressions (depending on n) for such invariants ...
Graovac, Ante   +4 more
openaire   +3 more sources

Computing Szeged index of graphs on triples

2017
Summary: Let \(G=(V,E)\) be a simple connected graph with vertex set \(V\) and edge set \(E\). The Szeged index of \(G\) is defined by \(S\mathcal z(G)=\sum_{e=uv\in E^nu}(e| G)n_v(e| G)\), where \(n_u(e| G)\) is the number of vertices of \(G\) closer to \(u\) than \(v\) and \(n_v(e| G)\) can be defined in a similar way.
Darafsheh, M.   +2 more
openaire   +1 more source

Szeged index of some nanotubes

Current Applied Physics, 2008
Abstract The Szeged index is one of the most important topological indices defined in chemistry. In this paper, the Szeged index of the hexagonal triangle graph T(n) and the zig-zag polyhex nanotube TUHC6[2p,q] are computed.
H. Yousefi-Azari   +2 more
openaire   +1 more source

On extremal cacti with respect to the Szeged index

Applied Mathematics and Computation, 2017
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An inequality between variable wiener index and variable szeged index

Applied Mathematics and Computation, 2019
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Katarína Hrináková   +2 more
openaire   +3 more sources

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