Bicyclic graphs with extremal degree resistance distance
Let $r(u,v)$ be the resistance distance between two vertices $u, v$ of a simple graph $G$, which is the effective resistance between the vertices in the corresponding electrical network constructed from $G$ by replacing each edge of $G$ with a unit resistor. The degree resistance distance of a simple graph $G$ is defined as ${D_R}(G) = \sum\limits_{\{u,
Liu, Jia-Bao +4 more
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Extremal unicyclic and bicyclic graphs of the Euler Sombor index
Topological indices are widely used to analyze and predict the physicochemical properties of compounds, and have good application prospects. Recently, the Euler Sombor index was introduced, which is defined as \begin{document}$ \begin{align} EP(G ...
Zhenhua Su, Zikai Tang
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The Laplacian eigenvalue 2 of bicyclic graphs
If $G$ is a graph, its Laplacian is the difference between diagonal matrix of its vertex degrees and its adjacency matrix. A one-edge connection of two graphs $G_{1}$ and $G_{2}$ is a graph $G=G_{1}\odot G_{2}$ with $V(G)=V(G_{1})\cup V(G_{2})$ and $E(G)= E(G_{1})\cup E(G_{2})\cup \{e=uv\}$ where $u\in V(G_1)$ and $v\in V(G_2)$.
Mojdeh, Doost Ali +2 more
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On signless Laplacian coefficients of bicyclic graphs
22 pages, 3 figures.
Zhang, Jie, Zhang, Xiao-Dong
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On Some Distance Spectral Characteristics of Trees
Graham and Pollack in 1971 presented applications of eigenvalues of the distance matrix in addressing problems in data communication systems. Spectral graph theory employs tools from linear algebra to retrieve the properties of a graph from the spectrum ...
Sakander Hayat +2 more
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MAXIMUM IRREGULARITY OF TOTALLY SEGREGATED ∞-BICYCLIC GRAPHS
T.F. Jorry, K.S. Parvathy
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On the multiplicative sum Zagreb index of molecular graphs
Multiplicative sum Zagreb index is a modified version of the famous Zagreb indices. For a graph GG, the multiplicative sum Zagreb index is defined as Π1*(G)=∏uv∈E(G)(dG(u)+dG(v)){\Pi }_{1}^{* }\left(G)={\prod }_{uv\in E\left(G)}\left({d}_{G}\left(u)+{d}_{
Sun Xiaoling, Du Jianwei, Mei Yinzhen
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High-throughput electronic property prediction of cyclic molecules with 3D-enhanced machine learning. [PDF]
Zheng P, Isayev O.
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Bicyclic temporin L peptide inhibitors targeting the SARS-CoV-2 main protease: design, synthesis, <i>in vitro</i> inhibition efficiency and molecular dynamics insights. [PDF]
Sharif MT +5 more
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Stability of bicyclic guanidine superbases and their salts in water. [PDF]
Gazagnaire E +6 more
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