Results 51 to 60 of about 17,183,897 (183)
Ultimate approximations in nonmonotonic knowledge representation systems
CoRR, 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
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Asymptotic Profiles and Disease Prevalence at the Steady State for an SIS Patch Model
Studies in Applied Mathematics, Volume 156, Issue 1, January 2026.ABSTRACT Infected individuals often display mobility patterns that differ significantly from those of healthy individuals—traveling less frequently, covering shorter distances, visiting fewer destinations, and altering their timing and modes of movement.
Daozhou Gao, Xin Li
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Semantics and complexity of recursive aggregates in answer set programming [PDF]
, 2011 The addition of aggregates has been one of the most relevant enhancements to the language of answer set programming (ASP). They strengthen the modelling power of ASP in terms of natural and concise problem representations.
Faber, Wolfgang +2 more
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Abstract and Applied Analysis, Volume 2026, Issue 1, 2026.This paper investigates the application of β‐open sets to the convergence analysis of nonautonomous evolution equations governed by maximal monotone operators in Hilbert spaces. β‐open sets are a class of generalized open sets introduced by Njåstad (1965), which coincides with the class of semiopen sets by Levine (1963).
Boushra Abbas, Simeon Reich
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Semismooth Support Vector Machines [PDF]
, 2000 The linear support vector machine can be posed as a quadratic pro- gram in a variety of ways. In this paper, we look at a formulation using the two-norm for the misclassi cation error that leads to a positive de - nite quadratic program with a single ...
Ferris, Michael, Munson, Todd
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A nonmonotone trust-region-approach with nonmonotone adaptive radius for solving nonlinear systems
Iranian Journal of Numerical Analysis and Optimization, 2016 This paper presents a trust-region procedure for solving systems of nonlinear equations. The proposed approach takes advantages of an effective adaptive trust-region radius and a nonmonotone strategy by combining both of them appropriately. It is believed that selecting an appropriate adaptive radius based on a suitable nonmonotone strategy can improve
Amini, Keyvan +2 more
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Global Stability Analysis of a Brucellosis Transmission Model Using the Treatment Effect
Journal 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
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Journal of Mathematics, Volume 2026, Issue 1, 2026.Schistosomiasis remains a major public health burden in endemic regions where repeated contact with cercariae‐contaminated freshwater sustains transmission. This study proposes a fractional‐order schistosomiasis model based on the Atangana–Baleanu–Caputo (ABC) derivative with a Mittag‐Leffler kernel.
Ateq Alsaadi, Smritijit Sen
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General Form of Nonmonotone Line Search Techniques For Unconstrained Optimization [PDF]
, 2009 By using the forcing function, we proposed a general form of nonmonotone line search technique for unconstrained optimization. The technique includes some well known nonmonotone line search as special cases while independence on the nonmonotone ...
Yu, Zhensheng, Lin, Ji
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Journal of Mathematics, Volume 2026, Issue 1, 2026.Measures of uncertainty such as entropy, extropy, varentropy, and varextropy play a fundamental role in statistical modeling and information analysis of probability distributions. In this article, we present and examine the variance of generalized extropy, providing a detailed investigation of its mathematical structure and theoretical characteristics.
Mohamed Said Mohamed +2 more
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