Results 41 to 50 of about 279 (150)

Convergence in comparable almost periodic reaction-diffusion systems with Dirichlet boundary conditions

open access: yesElectronic Journal of Differential Equations, 2014
In this article, we study the asymptotic dynamics in nonmonotone comparable almost periodic reaction-diffusion systems with Dirichlet boundary condition, which are comparable with uniformly stable strongly order-preserving system.
Feng Cao, Yelai Fu
doaj  

Global Stability Analysis of a Brucellosis Transmission Model Using the Treatment Effect

open access: yesJournal of Applied Mathematics, Volume 2026, Issue 1, 2026.
We formulate and study in this paper a deterministic compartmental model that explains the dynamics of the transmission of brucellosis from livestock to human populations. The model consists of five compartments: susceptible and infected livestock and susceptible, infected, and chronically infected human individuals.
Rami Raad Saadi   +3 more
wiley   +1 more source

A Nonmonotone Projection Method for Constrained System of Nonlinear Equations [PDF]

open access: yesMathematical Problems in Engineering, 2017
This paper deals with the nonmonotone projection algorithm for constrained nonlinear equations. For some starting points, the previous projection algorithms for the problem may encounter slow convergence which is related to the monotone behavior of the iterative sequence as well as the iterative direction.
Yazheng Dang, Wenwen Liu
openaire   +1 more source

A Hybrid Predictive Framework for Zika Dynamics Using the Normalized Caputo–Fabrizio Operator

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
We create and test a Zika transmission model that includes vector‐borne, sexual, and vertical channels under seasonal forcing and a fixed pregnancy‐to‐birth delay. All human and vector compartments are modeled using the normalized Caputo–Fabrizio (NCF) fractional derivative, allowing for nonsingular memory effects while maintaining classical initial ...
Ramsha Shafqat, Ateq Alsaadi, Ji Gao
wiley   +1 more source

A Hazard‐Based Regression Model Under the Exponentiated Alpha Power Log‐Logistic Distribution With Survival Data

open access: yesJournal of Probability and Statistics, Volume 2026, Issue 1, 2026.
This study introduces a hazard‐based regression model incorporating the exponentiated alpha‐power log‐logistic (EAPLL) baseline distribution. Specifically, the proposed model follows the EAPLL–accelerated failure time (AFT) framework, and we establish that the EAPLL distribution remains closed under the AFT model.
Veronica Kariuki, Alessandro Barbiero
wiley   +1 more source

Distributed Evaluation of Nonmonotonic Multi-context Systems

open access: yesJournal of Artificial Intelligence Research, 2015
Multi-context Systems (MCSs) are a formalism for systems consisting of knowledge bases (possibly heterogeneous and non-monotonic) that are interlinked via bridge rules, where the global system semantics emerges from the local semantics of the knowledge bases (also called “contexts”) in an equilibrium.
Minh Dao-Tran   +3 more
openaire   +2 more sources

Floer theory for the variation operator of an isolated singularity

open access: yesJournal of Topology, Volume 18, Issue 4, December 2025.
Abstract The variation operator in singularity theory maps relative homology cycles to compact cycles in the Milnor fiber using the monodromy. We construct its symplectic analog for an isolated singularity. We define the monodromy Lagrangian Floer cohomology, which provides categorifications of the standard theorems on the variation operator and the ...
Hanwool Bae   +3 more
wiley   +1 more source

Ultimate approximations in nonmonotonic knowledge representation systems

open access: yesCoRR, 2002
We study fixpoints of operators on lattices. To this end we introduce the notion of an approximation of an operator. We order approximations by means of a precision ordering. We show that each lattice operator O has a unique most precise or ultimate approximation. We demonstrate that fixpoints of this ultimate approximation provide useful insights into
Denecker, Marc   +2 more
openaire   +3 more sources

Estimation of System Reliability Based on Inverted Exponentiated Pareto Distribution Under a Progressively First‐Failure Censored Scheme With Application

open access: yesQuality and Reliability Engineering International, Volume 41, Issue 7, Page 3197-3219, November 2025.
ABSTRACT This article explores and derives the estimation of the multicomponent stress–strength (MSS) reliability parameter, assuming that the samples are coming from the inverted exponentiated Pareto distribution using a progressively first‐failure censored scheme. To estimate the MSS reliability, both classical and Bayesian approaches are adopted. In
Kapil Kumar   +2 more
wiley   +1 more source

The Existence of Moving Spike Patterns in an Attractive Chemotaxis Model

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 14, Page 13505-13516, 30 September 2025.
ABSTRACT We prove rigorously the existence of moving spike patterns in an attractive chemotaxis model with small diffusion coefficient for the chemical. In the zero diffusion limit, ϵ→0$$ \epsilon \to 0 $$, we prove that the non‐monotone traveling wave solutions of the system with ϵ>0$$ \epsilon >0 $$ converge to those of the system with ϵ=0$$ \epsilon
Tong Li, Casey Stone
wiley   +1 more source

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