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Mathematics, Volume 12, Issue 8

2024 April-2 - 148 articles

Cover Story: The two graphs illustrate the evolution of population and wealth near two steady points discussed in our study. These graphs focus on two key variables, population and wealth, plotting their trajectories in a two-dimensional space. The first graph depicts a stable point, where the dynamics gradually guide the system towards equilibrium. Conversely, the second graph shows an unstable point, with dynamics indicating a divergence from this state. The starting points are marked by small circles, while the steady states are indicated by a small star. View this paper
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Articles (148)

  • Article
  • Open Access
5 Citations
3,866 Views
14 Pages

Applying a Mathematical Model for Calculating the Ideal Nutrition for Sheep

  • Kristina Pavlova,
  • Elisaveta Trichkova-Kashamova and
  • Stanislav Dimitrov

22 April 2024

The principal economic sector devoted to the breeding, raising, and production of farm animals is known as the livestock industry. There are precise standards for making high-quality feed in animal husbandry. Precision livestock feeding is a crucial...

  • Article
  • Open Access
7 Citations
3,579 Views
16 Pages

Link Prediction and Graph Structure Estimation for Community Detection

  • Dongming Chen,
  • Mingshuo Nie,
  • Fei Xie,
  • Dongqi Wang and
  • Huilin Chen

22 April 2024

In real-world scenarios, obtaining the relationships between nodes is often challenging, resulting in incomplete network topology. This limitation significantly reduces the applicability of community detection methods, particularly neighborhood aggre...

(This article belongs to the Special Issue Theory and Application of Neural Networks and Complex Networks)
  • Article
  • Open Access
2 Citations
1,473 Views
18 Pages

22 April 2024

This paper aims to establish the existence and uniqueness of mild solutions to abstract sequential fractional differential equations. The approach employed involves the utilization of resolvent operators and the fixed-point theorem. Additionally, we...

(This article belongs to the Special Issue Theory and Applications of Fractional Equations and Calculus)
  • Article
  • Open Access
21 Citations
3,451 Views
24 Pages

22 April 2024

This study proposes a novel integration of the Extreme Gradient Boosting Machine (XGBoost) and Differential Flower Pollination (DFP) for constructing an intelligent method to predict the compressive strength (CS) of high-performance concrete (HPC) mi...

(This article belongs to the Special Issue Statistical Data Modeling and Machine Learning with Applications, 3rd Edition)
  • Article
  • Open Access
5 Citations
2,126 Views
31 Pages

22 April 2024

Extensive uncertainty can affect the efficiency and fairness of consensus in the consensus reaching process (CRP), but few scholars have studied consensus modeling that focuses on fairness and efficiency in uncertain environments. Additionally, the w...

  • Article
  • Open Access
4 Citations
1,830 Views
12 Pages

Multidimensional Model of Information Struggle with Impulse Perturbation in Terms of Levy Approximation

  • Anatolii Nikitin,
  • Svajonė Bekešienė,
  • Šárka Hošková-Mayerová and
  • Bohdan Krasiuk

22 April 2024

The focus of this research was on building a decision support system for a model that characterizes the conflict interaction of n-dimensional complex systems with non-trivial internal structures. The interpretation of the new model was focused on inf...

  • Article
  • Open Access
2 Citations
2,444 Views
23 Pages

22 April 2024

For the generalized Sturm–Liouville problem (GSLP), a new formulation is undertaken to reduce the number of unknowns from two to one in the target equation for the determination of eigenvalue. The eigenparameter-dependent shape functions are de...

(This article belongs to the Special Issue Numerical Analysis in Computational Mathematics)
  • Article
  • Open Access
4 Citations
2,065 Views
17 Pages

An Efficient Lightweight Authentication Scheme for Smart Meter

  • Jingqi Du,
  • Chengjing Dai,
  • Pinshang Mao,
  • Wenlong Dong,
  • Xiujun Wang and
  • Zhongwei Li

22 April 2024

With the rapid development of the information age, smart meters play an important role in the smart grid. However, there are more and more attacks on smart meters, which mainly focus on the identity authentication of smart meters and the security pro...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
2 Citations
1,932 Views
13 Pages

22 April 2024

A succinct and systematic form of multiplication for any arbitrary pairs of octonions is devised. A typical expression of multiplication for any pair of octonions involves 64 terms, which, from the computational and theoretical aspect, is too cumbers...

  • Article
  • Open Access
5 Citations
1,514 Views
17 Pages

22 April 2024

In this study, we introduce two novel discrete counterparts for the Rayleigh–Lindley mixture, constructed through the application of survival and hazard rate preservation techniques. These two-parameter discrete models demonstrate exceptional a...

(This article belongs to the Special Issue Application of the Bayesian Method in Statistical Modeling)
  • Article
  • Open Access
4 Citations
1,391 Views
12 Pages

On a Family of Hamilton–Poisson Jerk Systems

  • Cristian Lăzureanu and
  • Jinyoung Cho

22 April 2024

In this paper, we construct a family of Hamilton–Poisson jerk systems. We show that such a system has infinitely many Hamilton–Poisson realizations. In addition, we discuss the stability and we prove the existence of periodic orbits aroun...

(This article belongs to the Special Issue Advances in Differential Dynamical Systems with Applications to Economics and Biology, 2nd Edition)
  • Article
  • Open Access
9 Citations
1,947 Views
19 Pages

Fixed-Order Chemical Trees with Given Segments and Their Maximum Multiplicative Sum Zagreb Index

  • Akbar Ali,
  • Sadia Noureen,
  • Abdul Moeed,
  • Naveed Iqbal and
  • Taher S. Hassan

21 April 2024

Topological indices are often used to predict the physicochemical properties of molecules. The multiplicative sum Zagreb index is one of the multiplicative versions of the Zagreb indices, which belong to the class of most-examined topological indices...

  • Article
  • Open Access
1 Citations
2,315 Views
17 Pages

21 April 2024

We present an integration condition ensuring that a stochastic differential equation dXt=μ(t,Xt)dt+σ(t,Xt)dBt, where μ and σ are sufficiently regular, has a solution of the form Xt=Z(t,Bt). By generalizing the integration condition...

(This article belongs to the Special Issue First SDE: New Advances in Stochastic Differential Equations)
  • Article
  • Open Access
2 Citations
1,774 Views
17 Pages

A Probabilistic Structural Damage Identification Method with a Generic Non-Convex Penalty

  • Rongpeng Li,
  • Wen Yi,
  • Fengdan Wang,
  • Yuzhu Xiao,
  • Qingtian Deng,
  • Xinbo Li and
  • Xueli Song

21 April 2024

Due to the advantage that the non-convex penalty accurately characterizes the sparsity of structural damage, various models based on non-convex penalties have been effectively utilized to the field of structural damage identification. However, these...

(This article belongs to the Topic Artificial Intelligence (AI) Applied in Civil Engineering, 2nd Volume)
  • Article
  • Open Access
1 Citations
1,912 Views
12 Pages

21 April 2024

In recent high-throughput satellite communication (SatCom) systems, the use of reconfigurable intelligent surfaces (RISs) has emerged as a promising solution to improve spectral efficiency and extend coverage in areas with limited terrestrial network...

(This article belongs to the Special Issue Advanced Algorithms in Wireless Communication and Internet of Things (IoT))
  • Article
  • Open Access
10 Citations
3,853 Views
18 Pages

Urban Origin–Destination Travel Time Estimation Using K-Nearest-Neighbor-Based Methods

  • Felipe Lagos,
  • Sebastián Moreno,
  • Wilfredo F. Yushimito and
  • Tomás Brstilo

20 April 2024

Improving the estimation of origin–destination (O-D) travel times poses a formidable challenge due to the intricate nature of transportation dynamics. Current deep learning models often require an overwhelming amount of data, both in terms of d...

  • Article
  • Open Access
2,687 Views
24 Pages

20 April 2024

Various published COVID-19 models have been used in epidemiological studies and healthcare planning to model and predict the spread of the disease and appropriately realign health measures and priorities given the resource limitations in the field of...

(This article belongs to the Section E3: Mathematical Biology)
  • Feature Paper
  • Article
  • Open Access
3 Citations
2,858 Views
27 Pages

A Nonlinear ODE Model for a Consumeristic Society

  • Marino Badiale and
  • Isabella Cravero

20 April 2024

In this paper, we introduce an ODE system to model the interaction between natural resources and human exploitation in a rich consumeristic society. In this model, the rate of change in population depends on wealth per capita, and the rate of consump...

(This article belongs to the Special Issue Problems and Methods in Nonlinear Analysis)
  • Article
  • Open Access
1 Citations
2,197 Views
20 Pages

20 April 2024

Network disintegration is a fundamental issue in the field of complex networks, with its core in identifying critical nodes or sets and removing them to weaken network functionality. The research on this problem has significant strategic value and ha...

  • Article
  • Open Access
1 Citations
1,505 Views
16 Pages

Lie Modules of Banach Space Nest Algebras

  • Pedro Capitão and
  • Lina Oliveira

20 April 2024

In the present work, we extend to Lie modules of Banach space nest algebras a well-known characterisation of Lie ideals of (Hilbert space) nest algebras. Let A be a Banach space nest algebra and L be a weakly closed Lie A-module. We show that there e...

(This article belongs to the Special Issue Advances on Nonlinear Functional Analysis)
  • Article
  • Open Access
18 Citations
3,830 Views
17 Pages

Risk Analysis of the Use of Drones in City Logistics

  • Snežana Tadić,
  • Mladen Krstić,
  • Miloš Veljović,
  • Olja Čokorilo and
  • Milica Milovanović

20 April 2024

Drone delivery in city logistics is gaining attention due to road congestion, environmental threats, etc. However, there are risks associated with using drones which can result in hazardous events, such as conflicts in the air, loss of control, and s...

(This article belongs to the Special Issue Fuzzy Logic Applications in Traffic and Transportation Engineering)
  • Article
  • Open Access
5 Citations
3,064 Views
29 Pages

20 April 2024

Stagnation at local optima represents a significant challenge in bio-inspired optimization algorithms, often leading to suboptimal solutions. This paper addresses this issue by proposing a hybrid model that combines the Orca predator algorithm with d...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
13 Citations
2,776 Views
25 Pages

20 April 2024

This study explores a new dimension of accelerated life testing by analyzing competing risk data through Tampered Random Variable (TRV) modeling, a method that has not been extensively studied. This method is applied to simple step-stress life testin...

(This article belongs to the Special Issue Application of the Bayesian Method in Statistical Modeling)
  • Article
  • Open Access
31 Citations
3,556 Views
26 Pages

Fractional-Order Sliding Mode Observer for Actuator Fault Estimation in a Quadrotor UAV

  • Vicente Borja-Jaimes,
  • Antonio Coronel-Escamilla,
  • Ricardo Fabricio Escobar-Jiménez,
  • Manuel Adam-Medina,
  • Gerardo Vicente Guerrero-Ramírez,
  • Eduardo Mael Sánchez-Coronado and
  • Jarniel García-Morales

20 April 2024

In this paper, we present the design of a fractional-order sliding mode observer (FO-SMO) for actuator fault estimation in a quadrotor unmanned aerial vehicle (QUAV) system. Actuator faults can significantly compromise the stability and performance o...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
2 Citations
2,106 Views
23 Pages

Comparison of MOEAs in an Optimization-Decision Methodology for a Joint Order Batching and Picking System

  • Fabio Maximiliano Miguel,
  • Mariano Frutos,
  • Máximo Méndez,
  • Fernando Tohmé and
  • Begoña González

19 April 2024

This paper investigates the performance of a two-stage multi-criteria decision-making procedure for order scheduling problems. These problems are represented by a novel nonlinear mixed integer program. Hybridizations of three Multi-Objective Evolutio...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
1 Citations
2,529 Views
26 Pages

19 April 2024

Online multi-object tracking (MOT) techniques are instrumental in monitoring workers’ positions and identities in construction settings. Traditional approaches, which employ deep neural networks (DNNs) for detection followed by body similarity...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
4 Citations
3,174 Views
25 Pages

Spatial Constraints on Economic Interactions: A Complexity Approach to the Japanese Inter-Firm Trade Network

  • Eduardo Viegas,
  • Orr Levy,
  • Shlomo Havlin,
  • Hideki Takayasu and
  • Misako Takayasu

19 April 2024

The trade distance is an important constraining factor underpinning the emergence of social and economic interactions of complex systems. However, agent-based studies supported by the granular analysis of distances are limited. Here, we present a com...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
18 Citations
6,202 Views
19 Pages

19 April 2024

In recent years, blockchain technology has attracted substantial interest for its capability to transform supply chain management and finance. This paper employs evolutionary game theory to investigate the application of blockchain in mitigating fina...

(This article belongs to the Special Issue Modeling and Simulation Analysis of Blockchain System)
  • Article
  • Open Access
1 Citations
3,574 Views
25 Pages

Modeling the Propagation of Infectious Diseases across the Air Transport Network: A Bayesian Approach

  • Pablo Quirós Corte,
  • Javier Cano,
  • Eduardo Sánchez Ayra,
  • Chaitanya Joshi and
  • Víctor Fernando Gómez Comendador

19 April 2024

The COVID-19 pandemic, caused by the SARS-CoV-2 virus, continues to impact the world even three years after its outbreak. International border closures and health alerts severely affected the air transport industry, resulting in substantial financial...

(This article belongs to the Special Issue Statistical and Mathematical Modelling of Infectious Diseases)
  • Article
  • Open Access
2 Citations
2,469 Views
13 Pages

19 April 2024

Here, we study the extension of p-trigonometric functions sinp and cosp family in complex domains and p-hyperbolic functions sinhp and the coshp family in hyperbolic complex domains. These functions satisfy analogous relations as their classical coun...

(This article belongs to the Special Issue Advanced Research in Complex Analysis Operators and Special Classes of Analytic Functions)
  • Feature Paper
  • Article
  • Open Access
2 Citations
1,782 Views
13 Pages

19 April 2024

In this work, we consider holomorphically projective mappings of (pseudo-) Kähler spaces. We determine the conditions for finite complete geodesics that must be satisfied for the mappings to be trivial; i.e., these spaces are rigid.

(This article belongs to the Special Issue Complex and Contact Manifolds II)
  • Article
  • Open Access
1 Citations
1,818 Views
14 Pages

19 April 2024

This article investigates the Oldroyd fluid, which is widely used in industrial and engineering environments. When the Oldroyd fluid passes through a three-dimensional semi-infinite cylinder, the asymptotic properties of the solutions are established...

(This article belongs to the Special Issue Applications of Differential Equations in Sciences)
  • Article
  • Open Access
8 Citations
2,712 Views
38 Pages

19 April 2024

In this paper, we develop a two-level supply chain model with low carbon emissions for defective deteriorating items under learning in fuzzy environment by using the double inspection process. Carbon emissions are a major issue for the environment an...

(This article belongs to the Special Issue Advances and Application of Fuzzy Sets, Decision Making and Soft Computing)
  • Article
  • Open Access
15 Citations
2,343 Views
34 Pages

19 April 2024

The aim of this paper is to introduce a new type of two-dimensional convexity by using total-order relations. In the first part of this paper, we examine the Hyers–Ulam stability of two-dimensional convex mappings by using the sandwich theorem....

(This article belongs to the Special Issue Variational Problems and Applications, 2nd Edition)
  • Article
  • Open Access
10 Citations
2,526 Views
24 Pages

19 April 2024

This article introduces a discrete-time fractional variable order over a SEIQR model, incorporated for COVID-19. Initially, we establish the well-possedness of solution. Further, the disease-free and the endemic equilibrium points are determined. Mor...

(This article belongs to the Special Issue Recent Research on Fractional Calculus: Theory and Applications)
  • Article
  • Open Access
11 Citations
3,123 Views
21 Pages

VSD: A Novel Method for Video Segmentation and Storage in DNA Using RS Code

  • Jingwei Hong,
  • Abdur Rasool,
  • Shuo Wang,
  • Djemel Ziou and
  • Qingshan Jiang

19 April 2024

As data continue to grow in complexity and size, there is an imperative need for more efficient and robust storage solutions. DNA storage has emerged as a promising avenue to solve this problem, but existing approaches do not perform efficiently enou...

(This article belongs to the Section E3: Mathematical Biology)
  • Article
  • Open Access
1 Citations
2,290 Views
25 Pages

19 April 2024

Multi-objective evolutionary algorithms (MOEA) have attracted much attention because of their good global exploration ability; however, their local search ability near the optimal value is weak, and for large-scale decision-variable optimization prob...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
2 Citations
2,516 Views
18 Pages

19 April 2024

Measuring systemic risk plays an important role in financial risk management to control systemic risk. By means of a vine copula grouped-CoES method, this paper aims to measure the systemic risk of Chinese financial markets. The empirical study indic...

(This article belongs to the Special Issue Modeling, Analysis and Optimization for Mathematical Finance, Economics and Risks)
  • Feature Paper
  • Article
  • Open Access
1 Citations
2,006 Views
23 Pages

19 April 2024

This article proposes an algorithm that allows the selection of prognostic variables from a set of 21 variables describing the health statuses of male and female students. The set of variables could be divided into two groups—body condition ind...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
5 Citations
2,697 Views
29 Pages

19 April 2024

This study introduces a Finite Element (FE) hybrid methodology for analyzing deepwater offshore oil and gas floating production systems. In these systems, flexible risers convey the production and are connected to a balcony on one side of the platfor...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
11 Citations
3,920 Views
18 Pages

19 April 2024

Low-light image enhancement is very significant for vision tasks. We introduce Low-light Image Enhancement via Deep Learning Network (LLE-NET), which employs a deep network to estimate curve parameters. Cubic curves and gamma correction are employed...

(This article belongs to the Special Issue Advanced Numerical and Computational Methods for Engineering and Applied Mathematical Problems)
  • Article
  • Open Access
8 Citations
4,683 Views
26 Pages

Brain-Inspired Agents for Quantum Reinforcement Learning

  • Eva Andrés,
  • Manuel Pegalajar Cuéllar and
  • Gabriel Navarro

19 April 2024

In recent years, advancements in brain science and neuroscience have significantly influenced the field of computer science, particularly in the domain of reinforcement learning (RL). Drawing insights from neurobiology and neuropsychology, researcher...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
6 Citations
2,312 Views
27 Pages

19 April 2024

Piezoelectric vibration sensors (PVSs) are widely used in high-temperature environments, such as vibration measurements in aero-engines, because of their high accuracy, small size, and high temperature resistance. Accurate prediction of its RUL (Rema...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
7 Citations
1,708 Views
14 Pages

Attainability for Markov and Semi-Markov Chains

  • Brecht Verbeken and
  • Marie-Anne Guerry

19 April 2024

When studying Markov chain models and semi-Markov chain models, it is useful to know which state vectors n, where each component ni represents the number of entities in the state Si, can be maintained or attained. This question leads to the definitio...

(This article belongs to the Special Issue Stochastic Processes and Their Applications: In Honor of Prof. Sally McClean)
  • Article
  • Open Access
1 Citations
2,105 Views
13 Pages

A Speech Adversarial Sample Detection Method Based on Manifold Learning

  • Xiao Ma,
  • Dongliang Xu,
  • Chenglin Yang,
  • Panpan Li and
  • Dong Li

19 April 2024

Deep learning-based models have achieved impressive results across various practical fields. However, these models are susceptible to attacks. Recent research has demonstrated that adversarial samples can significantly decrease the accuracy of deep l...

(This article belongs to the Special Issue Advanced Research on Information System Security and Privacy)
  • Article
  • Open Access
3 Citations
1,345 Views
13 Pages

19 April 2024

Fuzzy multi-attribute decision-making is a hot research topic in which weight information is one of the conditions for forming a complete decision-making model, and it is also an important factor affecting the decision result. In most fuzzy multi-att...

(This article belongs to the Section D2: Operations Research and Fuzzy Decision Making)
  • Feature Paper
  • Article
  • Open Access
3,362 Views
17 Pages

18 April 2024

Machine learning for causal inference, particularly at the individual level, has attracted intense interest in many domains. Existing techniques focus on controlling differences in distribution between treatment groups in a data-driven manner, elimin...

(This article belongs to the Special Issue Computational Methods and Machine Learning for Causal Inference)
  • Article
  • Open Access
1 Citations
1,453 Views
17 Pages

18 April 2024

A mathematical justification of some basic structural properties of stochastically perturbed gene regulatory networks, including those with autoregulation and delay, is offered in this paper. By using the theory of stochastic differential equations,...

(This article belongs to the Special Issue Nonlinear Stochastic Dynamics and Control and Its Applications)
  • Article
  • Open Access
1 Citations
2,765 Views
17 Pages

18 April 2024

This study explores the design and optimization of thermomagnetic generators with a primary emphasis on enhancing energy efficiency. The core objectives revolve around improving power generation and efficient heat dissipation. We conducted an extensi...

(This article belongs to the Section E2: Control Theory and Mechanics)
  • Article
  • Open Access
2 Citations
1,851 Views
14 Pages

Evaluation of the Dynamic Amplification Factors of a Monorail Tourism Transit System Based on Probability Statistics

  • Fengqi Guo,
  • Chenjia Li,
  • Qiaoyun Liao,
  • Yongfeng Yan,
  • Changxing Wu and
  • Liqiang Jiang

18 April 2024

The straddle monorail tourist transportation system (MTTS) has developed rapidly in recent years, and its structure is an elevated steel structure with a beam–column system, and the design is executed according to the Safety Code for Large Amus...

(This article belongs to the Special Issue Model and Simulation in Structural Engineering)

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Mathematics - ISSN 2227-7390