Completing a 2×2 Block Matrix of Real Quaternions with a Partial Specified Inverse by Yong Lin, Qing-Wen Wang

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Sensitivity and Optimal Control Analysis of an Extended SEIR COVID-19 Mathematical Model by C. M. Wachira, G. O. Lawi, L. O. Omondi

“…In this paper, a mathematical model based on a system of ordinary differential equations is developed with vaccination as an intervention for the transmission dynamics of coronavirus 2019 (COVID-19). …”
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Highway Performance Evaluation Index in Semiarid Climate Region Based on Fuzzy Mathematics by Sanqiang Yang, Meng Guo, Xinlei Liu, Pidong Wang, Qian Li, Haiqing Liu

“…Due to the fuzziness and randomness of many factors affecting the pavement performance, this paper relies on the reconstruction and expansion project of Xinglin section of the Taihang mountain expressway, a method of highway pavement performance evaluation based on fuzzy mathematics is proposed. The results show the following: ① the study uses the factor domain, the comment level domain, the fuzzy relationship matrix, the evaluation factor full vector, and the fuzzy comprehensive evaluation result vector five-step method. …”
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Information limits and Thouless-Anderson-Palmer equations for spiked matrix models with structured noise by Jean Barbier, Francesco Camilli, Yizhou Xu, Marco Mondelli

“…In this paper, using tools from statistical physics (replica method) and random matrix theory (generalized spherical integrals) we establish the characterization of the information-theoretic limits for a noise matrix drawn from a general trace ensemble. …”
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Decomposition of the pangenome matrix reveals a structure in gene distribution in the Escherichia coli species by Siddharth M. Chauhan, Omid Ardalani, Jason C. Hyun, Jonathan M. Monk, Patrick V. Phaneuf, Bernhard O. Palsson

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Seasonal Mathematical Model of Salmonellosis Transmission and the Role of Contaminated Environments and Food Products by Mohammed H. Alharbi, Fawaz K. Alalhareth, Mahmoud A. Ibrahim

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Characterizations and properties of hyper-dual Moore-Penrose generalized inverse by Qi Xiao, Jin Zhong

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Two accelerated gradient-based iteration methods for solving the Sylvester matrix equation AX + XB = C by Huiling Wang, Nian-Ci Wu, Yufeng Nie

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A Globally Convergent Matrix-Free Method for Constrained Equations and Its Linear Convergence Rate by Min Sun, Jing Liu

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A hybrid singular value thresholding algorithm with diagonal-modify for low-rank matrix recovery by Ruiping Wen, Liang Zhang, Yalei Pei

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A Two-Step Matrix-Free Secant Method for Solving Large-Scale Systems of Nonlinear Equations by M. Y. Waziri, W. J. Leong, M. Mamat

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An agent-based model for elasto-plastic mechanical interactions between cells, basement membrane and extracellular matrix by Gianluca D'Antonio, Paul Macklin, Luigi Preziosi

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New Operational Matrix via Genocchi Polynomials for Solving Fredholm-Volterra Fractional Integro-Differential Equations by Jian Rong Loh, Chang Phang, Abdulnasir Isah

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Least-Norm of the General Solution to Some System of Quaternion Matrix Equations and Its Determinantal Representations by Abdur Rehman, Ivan Kyrchei, Muhammad Akram, Ilyas Ali, Abdul Shakoor

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Composites Based on Polypropylene and Talc: Processing Procedure and Prediction Behavior by Using Mathematical Models by Laiza Marinho Racca, Elen Beatriz Acordi Vasques Pacheco, Luiz Carlos Bertolino, Cristiane Xavier da Silva Campos, Monica Calixto de Andrade, Ana Maria Furtado de Sousa, Ana Lúcia Nazareth da Silva

“…iPP/Talc composites were produced, with different methods of filler addition in iPP matrix. Two different grades of Talc were used for comparison. …”
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Mathematical probit and logistic mortality models of the Khapra beetle fumigated with plant essential oils by Alhadi E. Alamir, Gomah E. Nenaah, Mohamed A. Hafiz

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Cognitive analysis and path construction of Chinese students’ mathematics cognitive process based on CDA by Xiaopeng Wu, Nanxin Li, Rongxiu Wu, Hao Liu

“…With CDA techniques, this study first identified eight attributes in mathematics cognition and formed a Q-matrix based on TIMSS-2015 items to construct the diagnosis assessment. …”
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Matrix measure-based exponential stability and synchronization of Markovian jumping QVNNs with time-varying delays and delayed impulses by Miao Zhang, Bole Li, Weiqiang Gong, Shuo Ma, Qiang Li

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The Optimal Graph Whose Least Eigenvalue is Minimal among All Graphs via 1-2 Adjacency Matrix by Lubna Gul, Gohar Ali, Usama Waheed, Nudrat Aamir

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A New Generalized Chebyshev Matrix Algorithm for Solving Second-Order and Telegraph Partial Differential Equations by Waleed Mohamed Abd-Elhameed, Ramy M. Hafez, Anna Napoli, Ahmed Gamal Atta

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