Results 31 to 40 of about 10,946,765 (186)

On the reduced second Zagreb index of graphs

open access: yesRocky Mountain Journal of Mathematics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gao, Fang, Xu, Kexiang
openaire   +3 more sources

GTI-space : the space of generalized topological indices [PDF]

open access: yes, 2008
A new extension of the generalized topological indices (GTI) approach is carried out torepresent 'simple' and 'composite' topological indices (TIs) in an unified way.
Matamala, Adelio R.   +2 more
core   +3 more sources

Smarandache-Zagreb Index on Three Graph Operators [PDF]

open access: yes, 2010
Many researchers have studied several operators on a connected graph in which one make an attempt on subdivision of its edges. In this paper, we show how the Zagreb indices, a particular case of Smarandache-Zagreb index of a graph changes with these ...
Ranjini, P.S., Lokesha, V.
core   +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

Zagreb indices of some chemical structures using new products of graphs [PDF]

open access: yesJournal of Hyperstructures, 2023
Zagreb indices are one of the most extensively studied degree-based structural descriptors for analyzing various physicochemical properties of chemical compounds.
Liju Alex, Indulal Gopal
doaj   +1 more source

On topological properties of block shift and hierarchical hypercube networks

open access: yesOpen Physics, 2018
Networks play an important role in electrical and electronic engineering. It depends on what area of electrical and electronic engineering, for example there is a lot more abstract mathematics in communication theory and signal processing and networking ...
Guirao Juan Luis García   +2 more
doaj   +1 more source

Computing Topological Descriptors and Polynomials of Certain 2D Chemical Structures

open access: yesJournal of Chemistry, 2021
In the fields of mathematical chemistry, a topological index, also known as a connectivity index, is a type of a molecular descriptor that is calculated based on the molecular graph of a chemical compound.
Muhammad Mubashir Izhar   +6 more
doaj   +1 more source

The unofficial economy in Croatia: causes, size and consequences [PDF]

open access: yes, 1997
This Occasional Paper reports the research results of a project on the unofficial economy in Croatia conducted by the Institute of Public Finance in Zagreb for the Croatian Ministry of Finance.
Bicanic, Ivo   +3 more
core   +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

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  

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