Results 31 to 40 of about 4,059,402 (265)

Extremal graphs of multiplicative sum Zagreb index [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
The multiplicative sum Zagreb index, regarded as the multiplicative version of the first Zagreb index, is defined as the product of the degree sum over all pairs of adjacent vertices.
Chunlei Xu   +3 more
doaj   +1 more source

Molecular Descriptors of Nanotube, Oxide, Silicate, and Triangulene Networks

open access: yesJournal of Chemistry, 2017
A topological index is a real number associated with chemical constitution purporting for correlation of chemical structure with various physical properties, chemical reactivity, or biological activity.
Wei Gao, Muhammad Kamran Siddiqui
doaj   +1 more source

Zagreb Indices of Trees, Unicyclic and Bicyclic Graphs With Given (Total) Domination

open access: yesIEEE Access, 2019
Let G = (V, E) be a (molecular) graph. For a family of graphs G, the first Zagreb index M1 and the second Zagreb index M2 have already studied. In particular, it has been presented, the first Zagreb index M1 and the second Zagreb index M2 of trees T in ...
Doost Ali Mojdeh   +3 more
doaj   +1 more source

Bounds and extremal graphs of second reformulated Zagreb index for graphs with cyclomatic number at most three

open access: yesKuwait Journal of Science, 2021
Mili\v{c}evi\'{c} \textit{et al.}, in 2004, introduced topological indices known as Reformulated Zagreb indices, where they modified Zagreb indices using the edge-degree instead of vertex degree.
Abhay Rajpoot, Lavanya Selvaganesh
doaj   +1 more source

The Zagreb Index of Several Random Models

open access: yesJournal of Stochastic Analysis, 2022
In this article, we investigate the Zagreb index, a kind of graph-based topological index, of several random networks, including a class of networks extended from random recursive trees, plain-oriented recursive trees, and random caterpillars growing in a preferential attachment manner.
openaire   +2 more sources

FDEM FAILURE ANALYSIS: BELL TOWER OF CHURCH OF ST. FRANCIS OF ASSISI ON KAPTOL IN ZAGREB

open access: yes, 2021
This paper presents a failure analysis of the bell tower of The Church of St. Francis of Assisi on Kaptol in Zagreb on seismic action using the Finite-Discrete Element method - FDEM.
Munjiza, Antonio   +11 more
core   +1 more source

Modified Zagreb connection indices of the T-sum graphs

open access: yesMain Group Metal Chemistry, 2020
The quantitative structures activity relationships (QSAR) and quantitative structures property relationships (QSPR) between the chemical compounds are studied with the help of topological indices (TI’s) which are the fixed real numbers directly linked ...
Ali Usman, Javaid Muhammad, Kashif Agha
doaj   +1 more source

A note on multiplicative sum Zagreb index [PDF]

open access: yes, 2020
For a nontrivial (molecular) graph G, its multiplicative sum Zagreb index, denoted by π * 1 (G), is defined as the product of the sum is the degree of vertex u.
J South Asian, Math, Zagreb Index
core  

APPROACH TO THE INTEGRATED URBAN REVITALISATION OF THE ZAGREB URBAN AGGLOMERATION AFTER THE 2020 EARTHQUAKE

open access: yes, 2021
Many European cities are facing problems of decline in parts of the urban fabric due to socioeconomic changes. Urban space is a ‘living tissue’ that is constantly changing due to numerous factors such as technological progress, demographic change, the ...
Katurić, Ivana   +5 more
core   +1 more source

Ocular related emergencies in Zagreb University Hospital Centre - ten month analysis [Oftalmološka hitna stanja u Kliničkom bolničkom centru Zagreb - desetmjesečna analiza] [PDF]

open access: yes, 2013
To determine number, demographic characteristics and presenting symptoms of patients admitted to Emergency ophthalmologic department of Zagreb University hospital centre.
Kordić, Rajko   +6 more
core   +1 more source

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