Results 21 to 30 of about 4,205,626 (161)

Szeged index, edge Szeged index, and semi-star trees

open access: yesDiscrete Applied Mathematics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ardeshir Dolati   +2 more
openaire   +3 more sources

Maximum values of Szeged index and edge-Szeged index of graphs

open access: yesElectronic Notes in Discrete Mathematics, 2009
AbstractThe Szeged index is a graph invariant which is a natural generalization of Wienerindex. In this note, we disprove two recent conjectures concerning with the maxi-mum value of Szeged index of graphs, which are due to Khalifeh et al. (Europ. J.Combinatorics (2008), doi:10.1016/j.ejc.2008.09.019) and respectively, to Gutmanet al. (Groat.
Ehsan Chiniforooshan, Baoyindureng Wu
openaire   +1 more source

On vertex PI index of certain triangular tessellation networks

open access: yesMain Group Metal Chemistry, 2021
The Wiener index, due to its many applications is considered to be one of very important distance-based index. But the Padmaker-Ivan (PI) index is kind of the only distance related index linked to parallelism of edges.
Bokhary Syed Ahtsham Ul Haq, Adnan
doaj   +1 more source

Topological edge properties of C60+12n fullerenes

open access: yesBeilstein Journal of Nanotechnology, 2013
A molecular graph M is a simple graph in which atoms and chemical bonds are the vertices and edges of M, respectively. The molecular graph M is called a fullerene graph, if M is the molecular graph of a fullerene molecule.
A. Mottaghi, Ali R. Ashrafi
doaj   +1 more source

The Topological Aspects of Phthalocyanines and Porphyrins Dendrimers

open access: yesIEEE Access, 2020
Topological descriptors are the numerical quantities of a graph that characterize various structural properties of it. In environmental sciences, pharmacy and in mathematical chemistry such descriptors are used for the quantitative structure-activity and
Wei Gao   +4 more
doaj   +1 more source

On a conjecture about the Szeged index

open access: yesEuropean Journal of Combinatorics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mustapha Aouchiche, Pierre Hansen
openaire   +2 more sources

Weighted Szeged indices of some graph operations [PDF]

open access: yesTransactions on Combinatorics, 2016
In this paper, the weighted Szeged indices of Cartesian product and Corona product of twoconnected graphs are obtained. Using the results obtained here, the weighted Szeged indices ofthe hypercube of dimension n, Hamming graph, C4 nanotubes, nanotorus ...
Kannan Pattabiraman, P. Kandan
doaj  

Szeged as Hinterland Between 1915–1917 [PDF]

open access: yes, 2022
The article discusses six aspects, which identified the stability of hinterland. Beside the sparse bibliographical sources, it mostly uses primary archival sources like mayor documents of Szeged, council documents of Szeged and lord lieutenant ...
Tóth, István
core   +1 more source

Szeged index of \(TUC_4C_8(S)\) nanotubes

open access: yesEuropean Journal of Combinatorics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abbas Heydari, Bijan Taeri
openaire   +1 more source

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