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A Fractional-Order Complexity Framework for Misinformation Propagation With Fact-Checking Saturation and Social Vulnerability Dynamics

Shewafera Wondimagegnhu Teklu, M. A. Abdelkawy, Waleed Adel • Complexity (2026)

Misinformation spreads through communities in ways that resemble infectious diseases, but existing mathematical models often miss three real-world complexities: People remember past information (memory effects), some folks are more easily f...

DOAJ Open Access (DOAJ) DOI: 10.1155/cplx/8861194

How Does Anxiety Affect the Relationship between the Customer and the Omnichannel Systems?

Bui Thanh Khoa, Tran Trong Huynh • Journal of Theoretical and Applied Electronic Commerce Research (2023)

Omnichannel is not just a marketing, e-commerce, or customer support buzzword. This future customer engagement platform helps businesses communicate with customers through centralized channels on a smart interface. It is difficult to achiev...

DOAJ Open Access (DOAJ) DOI: 10.3390/jtaer18010007

A fast three-step second-order explicit numerical approach to investigating and forecasting the dynamic of corruption and poverty in Cameroon

Eric Ngondiep • Heliyon (2024)

This paper constructs a three-step second-order numerical approach for solving a mathematical model on the dynamic of corruption and poverty. The stability and error estimates of the proposed technique are analyzed using the L2-norm. The de...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2024.e38236

Mathematical modeling of the COVID-19 pandemic with intervention strategies

Subhas Khajanchi, Kankan Sarkar, Jayanta Mondal, Kottakkaran Sooppy Nisar et al. • Results in Physics (2021)

Mathematical modeling plays an important role to better understand the disease dynamics and designing strategies to manage quickly spreading infectious diseases in lack of an effective vaccine or specific antivirals. During this period, for...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.rinp.2021.104285

Mathematics and Reality

Stewart Shapiro • Philosophy of Science (1983)

The subject of this paper is the philosophical problem of accounting for the relationship between mathematics and non-mathematical reality. The first section, devoted to the importance of the problem, suggests that many of the reasons for e...

OPENALEX DOI: https://doi.org/10.1086/289138

A History of Mathematics: An Introduction

Jim Tattersall, Victor Katz • College Mathematics Journal (1994)

Part I. Ancient Mathematics 1. Egypt and Mesopotamia 1.1 Egypt 1.2 Mesopotamia 2. The Beginnings of Mathematics in Greece 2.1 The Earliest Greek Mathematics 2.2 The Time of Plato 2.3 Aristotle 3. Euclid 3.1 Introduction to the Elements 3.2 ...

OPENALEX DOI: https://doi.org/10.2307/2687626

Numerical Modal Analysis of Vibrations in a Three-Phase Linear Switched Reluctance Actuator

José Salvado, Maria do Rosário Calado, António Espírito Santo, Anna Guerman • Modelling and Simulation in Engineering (2017)

This paper addresses the problem of vibrations produced by switched reluctance actuators, focusing on the linear configuration of this type of machines, aiming at its characterization regarding the structural vibrations. The complexity of t...

DOAJ Open Access (DOAJ) DOI: 10.1155/2017/3258376

On practical ℎ-observer design for nonlinear non-autonomous dynamical systems with disturbances

Manel Alaya, Hanen Damak, Nizar Hadj Taieb, Mohamed Ali Hammami • Archives of Control Sciences (2024)

In this paper, a particular form of practical ℎ-observers for piecewise continuous Lipschitz, one-sided piecewise continuous Lipschitz systems and quasi-one-sided piecewise continuous Lipschitz systems is extended to nonlinear non-autonomou...

DOAJ Open Access (DOAJ) DOI: https://doi.org/10.24425/acs.2024.153106

A Novel MRAC Scheme for Output Tracking

Tingting Tian, Xiaorong Hou, Fang Yan • Mathematics (2022)

This paper puts forward a novel output feedback model reference adaptive control (MRAC) scheme for solving an adaptive output tracking problem. The proposed control scheme only needs a scalar function to be updated online, which decreases t...

DOAJ Open Access (DOAJ) DOI: 10.3390/math10142384

Mathematics as a science of patterns

Michael D. Resnik • Choice Reviews Online (1998)

Mathematics as a Science of Patterns is the definitive exposition of a system of ideas about the nature of mathematics which Michael Resnik has been elaborating for a number of years. In calling mathematics a science he implies that it has ...

OPENALEX DOI: https://doi.org/10.5860/choice.35-4549

Linking Preservice Teachers' Mathematics Self‐Efficacy and Mathematics Teaching Efficacy to Their Mathematical Performance

Alan Bates, Nancy I. Latham, Jinah Kim • School Science and Mathematics (2011)

This study examined preservice teachers' mathematics self‐efficacy and mathematics teaching efficacy and compared them to their mathematical performance. Participants included 89 early childhood preservice teachers at a Midwestern universit...

OPENALEX DOI: https://doi.org/10.1111/j.1949-8594.2011.00095.x

Refining the Galerkin method error estimation for parabolic type problem with a boundary condition

Mamatov Alisher, Narjigitov Xusanboy, Turdibayev Dilshod, Rakhmanov Jamshidbek • E3S Web of Conferences (2021)

The article considers a parabolic-type boundary value problem with a divergent principal part, when the boundary condition contains the time derivative of the required function: { ut−d/dxiai(x,t,u,∇u)+a(x,t,u,∇u)=0,a0ut+ai(x,t,u,∇u)cos(v,...

DOAJ Open Access (DOAJ) DOI: 10.1051/e3sconf/202130403019

Solar heat transport analysis of Falkner Skan Casson ternary hybrid nanoparticles over a permeable wedge

Khan Mohsin, Sheheryar Shah, Amra Al Kenany, Meshal Shutaywi et al. • Discover Nano (2026)

Abstract In the modern era, energy has become a vital concern across all sectors, while efficient energy generation remains a significant challenge for scientists and engineers. To overcome this issue, researchers have developed ternary hyb...

DOAJ Open Access (DOAJ) DOI: 10.1186/s11671-026-04821-1

New Insights into Cd<sup>2+</sup>/Fe<sup>3+</sup> Co-Doped BiOBr for Enhancing the Photocatalysis Efficiency of Dye Decomposition under Visible-Light

Hong Sheng, Wei Wang, Rong Dai, Jing Ning et al. • Nanomaterials (2021)

Uniform flowerlike microspheres Cd2+/Fe3+ co-doped BiOBr were prepared with the aid of the microwave hydrothermal process. The results indicate that the degradation performance of Bi1−xCdxOBr and Bi1−xFexOBr are 1.31 and 2.05 times that of ...

DOAJ Open Access (DOAJ) DOI: 10.3390/nano11020423

Mathematical Problems in Engineering

Mirko Viroli D • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (2017)

Mathematical Problems in Engineering is a peer-reviewed, open access journal that publishes results of rigorous engineering research carried out using mathematical tools. Contributions containing formulations or results related to applicati...

OPENALEX

The Effects of the Weak Allee Effect and Disease on the Dynamics of a Predator–Prey System: Stability and Bifurcation Properties

Yurong Dong, Hua Liu, Jianhua Ye, Gang Ma et al. • Axioms (2025)

In this paper, an eco-epidemiological model with a weak Allee effect and prey disease dynamics is discussed. Mathematical features such as non-negativity, boundedness of solutions, and local stability of the feasible equilibria are discusse...

DOAJ Open Access (DOAJ) DOI: 10.3390/axioms14070531

Optimasi proses penjadwalan mata kuliah menggunakan algoritme genetika dan pencarian tabu

Arif Amrulloh, Enny Itje Sela • Jurnal Teknologi dan Sistem Komputer (2021)

Penjadwalan mata kuliah merupakan permasalahan yang sering terjadi pada perguruan tinggi, di antaranya adalah bentrok waktu mengajar dosen, ruangan dan kelas mahasiswa. Kajian ini mengusulkan optimasi penjadwalan mata kuliah menggunakan alg...

DOAJ Open Access (DOAJ) DOI: 10.14710/jtsiskom.2021.14137

Cooperation-Based Modeling of Sustainable Development: An Approach from Filippov’s Systems

Jorge A. Amador, Johan Manuel Redondo, Gerard Olivar‐Tost, Christian Erazo • Complexity (2021)

The concept of Sustainable Development has given rise to multiple interpretations. In this article, it is proposed that Sustainable Development should be interpreted as the capacity of territory, community, or landscape to conserve the noti...

DOAJ Open Access (DOAJ) DOI: 10.1155/2021/4249106