Results 1 to 10 of about 79,761 (304)
Ve-Degree, Ev-Degree, and Degree-Based Topological Indices of Fenofibrate
Journal of Mathematics, 2022 The molecular topology of a graph is described by topological indices, which are numerical measures. In theoretical chemistry, topological indices are numerical quantities that are used to represent the molecular topology of networks.
Sadik Delen +6 more
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Topological Degree via a Degree of Nondensifiability and Applications
AxiomsThe goal of this work is to introduce the notion of topological degree via the principle of the degree of nondensifiability (DND for short). We establish some new fixed point theorems, concerning, Schaefer’s fixed point theorem and the nonlinear ...
Noureddine Ouahab +2 more
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Novel Degree-Based Topological Descriptors of Fenofibrate Using M-Polynomial
Journal of Mathematics, 2023 Chemical graph theory is currently expanding the use of topological indices to numerically encode chemical structure. The prediction of the characteristics provided by the chemical structure of the molecule is a key feature of these topological indices ...
Muhammad Kamran +6 more
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On Some Ve-Degree and Harmonic Molecular Topological Properties of Carborundum
ARO-The Scientific Journal of Koya University, 2020 Carborundum, also known as silicon carbide which containing carbon and silicon, is a semiconductor. Molecular topological properties of physical substances are important tools to investigate the underlying topology of these substances.
Murat Cancan +3 more
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Gutman index, edge-Wiener index and edge-connectivity [PDF]
Transactions on Combinatorics, 2020 We study the Gutman index ${\rm Gut}(G)$ and the edge-Wiener index $W_e (G)$ of connected graphs $G$ of given order $n$ and edge-connectivity $\lambda$.
Jaya Mazorodze +2 more
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On the uniqueness of the topological degree
Mathematische Zeitschrift, 1973 Amann Herbert
exaly +3 more sources
Extremal topological indices of some nanostructures
Heliyon, 2023 In this work, general formulas of degree-based and neighborhood degree sum-based topological indices for a 2D lattice of H-Naphtalenic nanotubes and pent-heptagonal nanosheets are determined.
Shivani Rai +3 more
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Open Mathematics, 2022 In this article, we are concerned with the periodic solutions of first-order difference equation Δu(t−1)=f(t,u(t))−s,t∈Z,(P)\Delta u\left(t-1)=f\left(t,u\left(t))-s,\hspace{1em}t\in {\mathbb{Z}},\hspace{1.0em}\hspace{1.0em}\left(P) where s∈Rs\in {\mathbb{
Zhao Jiao, Ma Ruyun
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Topological mixing of higher degrees [PDF]
Proceedings of the American Mathematical Society, 1978 We give examples of homeomorphisms which are topologically 1-mixing but not topologically 2-mixing. One is a subshift and the other is a diffeomorphism of the torus.
Goodman, Sue, Marcus, Brian
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Moroccan Journal of Pure and Applied Analysis, 2021 The aim of this paper is to establish the existence of solutions for a nonlinear elliptic problem of the ...
Ait Hammou Mustapha, Azroul Elhoussine
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