Results 11 to 20 of about 3,144 (190)
Computing Zagreb Indices and Zagreb Polynomials for Symmetrical Nanotubes [PDF]
Symmetry, 2018 Topological indices are numbers related to sub-atomic graphs to allow quantitative structure-movement/property/danger connections. These topological indices correspond to some specific physico-concoction properties such as breaking point, security, strain vitality of chemical compounds.
Zehui Shao +2 more
openaire +3 more sources
New bounds on Zagreb indices and the Zagreb Co-indices
Boletim da Sociedade Paranaense de Matemática, 2011 In this short note, we studied the first, second Zagreb indices and the Zagreb Co-indices. Also, established the connections of bounds to the above sighted indices.
P. S. Ranjini +3 more
openaire +5 more sources
On multiple Zagreb index of TiO2 nanotubes
Acta Chimica Slovenica, 2015 The First and Second Zagreb indices were first introduced by I. Gutman and N. Trinajstic in 1972. It is reported that these indices are useful in the study of anti-inflammatory activities of certain chemical instances, and in elsewhere.
Mehar Ali Malik, Muhammad Imran
doaj +1 more source
Computing Topological Indices and Polynomials for Line Graphs
Mathematics, 2018 A topological index is a number related to the atomic index that allows quantitative structure–action/property/toxicity connections. All the more vital topological indices correspond to certain physico-concoction properties like breaking point ...
Shahid Imran +3 more
doaj +1 more source
Journal of Function Spaces, 2022 Our objective is to compute the neighborhood degree-based topological indices via NM-polynomial for starphene. In the neighborhood degree-based topological indices, we compute the third version of the Zagreb index; neighborhood second Zagreb index ...
Deeba Afzal +5 more
doaj +1 more source
Beyond the Zagreb indices [PDF]
AKCE International Journal of Graphs and Combinatorics, 2020 The two Zagreb indices and are vertex-degree-based graph invariants that have been introduced in the 1970s and extensively studied ever since. In the last few years, a variety of modifications of and were put forward. The present survey of these modified Zagreb indices outlines their main mathematical properties, and provides an exhaustive bibliography.
Gutman, Ivan +2 more
openaire +3 more sources
Topological Indices of Families of Bistar and Corona Product of Graphs
Journal of Mathematics, 2022 Topological indices are graph invariants that are used to correlate the physicochemical properties of a chemical compound with its (molecular) graph. In this study, we study certain degree-based topological indices such as Randić index, Zagreb indices ...
A. Khalid +5 more
doaj +1 more source
Kuwait 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
First reformulated Zagreb indices of some classes of graphs
Karpatsʹkì Matematičnì Publìkacìï, 2018 A topological index of a graph is a parameter related to the graph; it does not depend on labeling or pictorial representation of the graph. Graph operations plays a vital role to analyze the structure and properties of a large graph which is derived ...
V. Kaladevi +2 more
doaj +1 more source
Modified Zagreb connection indices of the T-sum graphs
Main 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