Results 51 to 60 of about 4,554,566 (196)
Ocular related emergencies in Zagreb University Hospital Centre - ten month analysis [Oftalmološka hitna stanja u Kliničkom bolničkom centru Zagreb - desetmjesečna analiza] [PDF]
, 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
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Eccentricity-Based Topological Indices of a Cyclic Octahedron Structure
Mathematics, 2018 In this article, we study the chemical graph of a cyclic octahedron structure of dimension n and compute the eccentric connectivity polynomial, the eccentric connectivity index, the total eccentricity, the average eccentricity, the first Zagreb index ...
Manzoor Ahmed Zahid +3 more
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Topological Evaluation of Four Para-Line Graphs Absolute Pentacene Graphs Using Topological Indices
International Journal of Analysis and Applications, 2023 A real-number to molecular structure mapping is a topological index. It is a graph invariant method for describing physico-chemical properties of molecular structures specific substances. In that article, We examined pentacene’s chemical composition. The
Mukhtar Ahmad +5 more
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Computing Topological Indices and Polynomials of the Rhenium Trioxide
Journal of Mathematics, 2022 In the study of mathematical chemistry and chemical graph theory, a topological index, also known as a connectivity index, is the arithmetical framework of a graph that specifies its topology and also graph invariant.
Shahid Imran +4 more
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Zagreb-Type Indices of R-Vertex Join and R-Edge Join of Graphs
Journal of Chemistry, 2020 There are various methods available which are used to search large chemical databases and to predict the physicochemical properties of molecular structures. Using molecular descriptors for this purpose is the simplest of these methods. The Zagreb indices
Jianxin Wei +3 more
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The Calculations of Topological Indices on Certain Networks
Journal of Mathematics, 2021 It is one of the core problems in the study of chemical graph theory to study the topological index of molecular graph and the internal relationship between its structural properties and some invariants.
Jia-Bao Liu, Ting Zhang, Sakander Hayat
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Kragujevac Journal of MathematicsA tournament is an orientation of a complete simple graph. The score of a vertex in a tournament is the out degree of the vertex. The Zagreb index of a tournament is defined as the sum of the squares of the scores of its vertices. In this paper, we obtain various lower and upper bounds for the Zagreb index of a tournament.
TARIQ AHMAD NAIKOO +3 more
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The general Zagreb index of lattice networks
CoRR, 2019 A topological index is a real number which is derived from a network or a graph by mathematically that characterizes the whole of its structural properties. Recently, there are various topological indices that have been introduced in mathematical chemistry to predict the properties of molecular topology. Among, the degree based topological indices such
Prosanta Sarkar, Nilanjan De, Anita Pal
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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
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Some topological properties of uniform subdivision of Sierpiński graphs
Main Group Metal Chemistry, 2021 Sierpiński graphs are family of fractal nature graphs having applications in mathematics of Tower of Hanoi, topology, computer science, and many more diverse areas of science and technology. This family of graphs can be generated by taking certain number
Liu Jia-Bao +3 more
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