A Mathematical Model for a Transmissible Disease with a Variant by A. Otto, M. Amidou

“…We determined the four equilibria of the system of ordinary differential equations representing the model and characterized their existence using exact methods of algebraic geometry and computer algebra. The model is studied using the stability theory for systems of differential equations and the basic reproduction number R0. …”
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An Algorithm for Higher Order Hopf Normal Forms by A.Y.T. Leung, T. Ge

“…Normal form theory is important for studying the qualitative behavior of nonlinear oscillators. …”
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On Some Properties of Multiplicative Topological Indices in Silicon-Carbon by Abid Mahboob, Sajid Mahboob, Mohammed M. M. Jaradat, Nigait Nigar, Imran Siddique

“…The use of graph theory can be visualized in nanochemistry, computer networks, Google maps, and molecular graph which are common areas to elaborate application of this subject. …”
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H∞-Based Pinning Synchronization of General Complex Dynamical Networks with Coupling Delays by Bowen Du, Dianfu Ma

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Vertex-Edge-Degree-Based Topological Properties for Hex-Derived Networks by Ali Ahmad, Muhammad Imran

“…A topological index can be focused on uprising of a chemical structure into a real number. The degree-based topological indices have an active place among all topological indices. …”
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Linear Stability of Magneto Viscoelastic Walter’s B′ Type with Heat and Mass Transfer by D. M. Mostafa

“…In this paper, the couple influence of axial magnetic field and the heat and mass transfer on two rotating cylinders of Walter’s B′ viscoelastic fluids by using the potential flow theory of viscoelastic fluid has been investigated. …”
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RS regenerating codes for cloud storage fault-tolerant system by Xi-ai YAN, Da-fang ZHANG, Jin-min YANG, Bo-yun ZHANG

“…RS(Reed-Solomon) regenerating erasure codes was proposed for cloud storage fault-tolerant system,which not only inherited the reliability of the RS encoding,but also achieved the high efficiency of tolerance three faults.Hybrid recovery method of the single fault node based on RS regenerating erasure codes was introduced.And the theoretical lower bound of the number of accessing disks was computed.In theory,the performance evaluation of the storage overhead,decoding efficiency,and repair bandwidth of the RS regenerating erasure codes was carried out.Experiments results show that the repair performance of RS regenerating erasure codes is improved greatly than the similar erasure codes,and the total recovery time of the system is reduced by 20.8%~28.2% using hybrid recovery algorithm in the case of single fault.…”
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Chemical Application of Topological Indices in Infertility Treatment Drugs and QSPR Analysis by Sobia Sultana

“…In this study, the author examined a number of recently used drugs, including tamoxifen, mesterolone, anastrozole, and letrozole which are used to treat infertility. …”
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pyScrew4Mobility: Modul Python untuk Penentuan Mobilitas Manipulator Paralel Berbasis Teori Screw by Adriyan Adriyan

“…The screw theory can specify the number and the type of motions owned by PMs with over-constrained or non-over constrained kinematic structures. …”
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Study of COVID-19 cases with real data analysis by Wedad Albalawi, Kottakkaran Sooppy Nisar, Nadir Omer, Adnan Aslam, Takasar Hussain, Muhammad Ozair, Shahid Hussain, Nida Hameed

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Multiple underwater target positioning with optimally placed acoustic surface sensor networks by David Moreno-Salinas, Antonio Manuel Pascoal, Joaquín Aranda

“…For reasons that have to do with the unavailability of Global Positioning System underwater, cost reduction, and simplicity of operation, there is currently a surge of interest in the development of range-based multiple target localization systems that rely on the computation of the distances between the targets and a number of sensor nodes deployed at the ocean surface, equipped with acoustic range measuring devices. …”
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Eccentricity-Based Topological Descriptors of First Type of Hex-Derived Network by Usman Babar, Asim Naseem, Hani Shaker, Mian Muhammad Zobair, Haidar Ali

“…Graph theory has made significant progress in mathematical chemistry and has gained a lot of traction among scientists due to its numerous applications in mathematical chemistry. …”
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Survey of digital signature technology based on error correcting codes by Fang REN, Dong ZHENG, Jiu-lun FAN

“…The emergence of quantum algorithms have threatened the security of digital signature algorithms widely used currently,most of which based on some hard problems in number theory.The digital signature algorithms based on error correcting codes,which can resist quantum attack,has been studied by many researchers in recent years and there have been many research results in different areas,such as normal digital signature,blind signature,ring signature,group signature.Because of the fast computation speed and high security,it has become one of the most promising digital signature technologies.A comprehensive introduction was given and digital signature technologies based on error correcting codes were summarized,the key technologies were analyzed and the possible research directions in the future were pointed out.…”
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Analytic Formula for the Vibration and Sound Radiation of a Nonlinear Duct by Yiu-Yin Lee

“…The effects of excitation magnitude, panel length, damping, and number of flexible panels on the sound and vibration responses are investigated.…”
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Fault-Tolerant Partition Resolvability of Cyclic Networks by Kamran Azhar, Sohail Zafar, Agha Kashif, Michael Onyango Ojiema

“…Structure of web sites containing number of pages can be represented using graph, where web pages are considered to be the vertices, and an edge is a link between two pages. …”
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Efficient Prediction of Superlattice and Anomalous Miniband Topology from Quantum Geometry by Valentin Crépel, Jennifer Cano

“…In this article, we develop a versatile and computationally inexpensive method to predict the topological properties of materials subjected to a superlattice potential by combining degenerate perturbation theory with the method of symmetry indicators. …”
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Error performance of multi-branch dual-hop PF cooperative systems by Guangqiu LI, Jiayun DONG, Tao JIANG

“…Design of multi-branch dual-hop phase-only forward(PF)cooperative systems with continuous phase frequency shift keying(CPFSK)modulation needs to determine the number of branch and modulation index.The usual solution of determining the above parameters is the time-consuming and inefficient computer simulation.An efficient solution of determining these parameters is theoretical analysis method.Semi-analytical expressions for the average bit error rate(ABER)of multi-branch dual-hop PF cooperative systems in conjunction with discrimination detection CPFSK over time-selective Rayleigh fading channels was presented.Two cases with and without antenna selection at the relays and maximum-ratio combining(MRC)receive diversity at the destination were considered.The simulation results show that numerical calculation results and simulation results for the ABERs of PF，discrimination detection,CPFSK cooperative systems are consistent and show that the above ABER theory results of CPFSK cooperative systems can be used to design PF cooperative systems.…”
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Twin Subgraphs and Core-Semiperiphery-Periphery Structures by Ricardo Riaza

“…We compute explicitly the resulting CSP structures up to order six. …”
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Efficient digital quadratic unconstrained binary optimization solvers for SAT problems by Robert Simon Fong, Yanming Song, Alexander Yosifov

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Construction of Gene Regulatory Networks Using Recurrent Neural Networks and Swarm Intelligence by Abhinandan Khan, Sudip Mandal, Rajat Kumar Pal, Goutam Saha

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