Geometric perspective to Degree–Based topological indices of supramolecular chain
Results in Engineering, 2022 Sombor index and their types are introduced pertaining to Euclidean geometry. In graph-theoretical terminology, it is the sum of all pairs of adjacent vertices di2+dj2 given di is the degree of ith vertex.
Muhammad Imran +4 more
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Syntactic Complexity Development in CSL Writing: A Perspective from Dynamic Systems Theory [PDF]
Behavioral SciencesSyntactic complexity is a crucial aspect of assessing writing quality in Chinese as a second language. While existing literature predominantly focuses on synchronic features of syntactic complexity, particularly changes in complexity indices, less ...
Huan Zhang
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M polynomial and degree based topological indices of six common synthetic polymers [PDF]
Scientific ReportsThe M-polynomial is a powerful algebraic tool that encodes structural information of molecular graphs and enables the derivation of numerous degree-based topological indices through algebraic operations.
Noel George +2 more
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Frontiers in Chemistry, 2023 The Zagreb connection indices are the known topological descriptors of the graphs that are constructed from the connection cardinality (degree of given nodes lying at a distance 2) presented in 1972 to determine the total electron energy of the alternate
Zahid Raza, Shehnaz Akhter, Yilun Shang
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Computing PI and Szeged indices of multiple phenylenes and cyclic hexagonal–square chain consisting of mutually isomorphic hexagonal chains [PDF]
Journal of the Serbian Chemical Society, 2007 PI and Szeged indices are two of the most important topological indices defined in chemistry. In this study, the PI and Szeged indices of linear [n]-phenylenes and a cyclic hexagonal-square chain consisting of n mutually isomorphic hexagonal chains were ...
H. YOUSEFI–AZARI +3 more
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A Comparative Analysis of Outstanding Claim Reserves [PDF]
Economic Horizons, 2017 The key processes in the business of insurance companies which define the financial viability of their business activities, as the most important element, are the adequate amount of technical reserves.
Zlata Djuric, Bojana Maracic
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Connecting SiO4 in Silicate and Silicate Chain Networks to Compute Kulli Temperature Indices
Molecules, 2022 A topological index is a numerical parameter that is derived mathematically from a graph structure. In chemical graph theory, these indices are used to quantify the chemical properties of chemical compounds.
Ying-Fang Zhang +4 more
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PriceIndices – a New R Package for Bilateral and Multilateral Price Index Calculations [PDF]
Statistika: Statistics and Economy Journal, 2021 The methodology of price indices dedicated to scanner data is broad, multifaceted, and still contains many open problems. The main challenges include choosing the index formula and the time window width in multilateral methods, as well as determining ...
Jacek Białek
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What can we tell about global auroral-electrojet activity from a single meridional magnetometer chain? [PDF]
Annales Geophysicae, 1996 The AE indices are generally used for monitoring the level of magnetic activity in the auroral oval region. In some cases, however, the oval is either so expanded or contracted that the latitudinal coverage of the AE magnetometer chain is not adequate.
K. Kauristie +3 more
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Development of number of employees in the Czech companies with venture capital investment
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2012 According to Schefzyk (2006), creating of new job opportunities in companies financed by venture capital ranks among the most considerable economic impacts of venture capital on companies and national economy.
Anna Fedorová, Jaroslava Rajchlová
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