Results 1 to 10 of about 17,727 (164)
Linearly Stratified Models for the Foundations of Nonstandard Mathematics [PDF]
AbstractAssuming the existence of an inaccessible cardinal, transitive full models of the whole set theory, equipped with a linearly valued rank function, are constructed. Such models provide a global framework for nonstandard mathematics.
Mauro Di Nasso
exaly +3 more sources
Nonstandard Models and Kripke's Proof of the Gödel Theorem
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exaly +4 more sources
Educational gradients in nonstandard work schedules among mothers and fathers in the United Kingdom
Background: Mothers' and fathers' participation in nonstandard employment across children's lives is not well understood in the United Kingdom. Objective: The first objective is to describe the prevalence of nonstandard work schedules (e.g., evenings,
Afshin Zilanawala
doaj +1 more source
This study investigates the link between nonstandard schedules and three psychological resources salient to working parents' parental functioning (psychological distress, work-family conflict and relationship quality).
Yixuan Zhao +4 more
doaj +1 more source
Numerical treatments for some stochastic–deterministic chaotic systems
We aim in this paper to propose classes of nonlinear ordinary differential equations based on the concept of piecewise differentiation. These classes are known as piecewise deterministic–stochastic differential equations or vice versa.
N.H. Sweilam +4 more
doaj +1 more source
In this study, a mathematical model describing diabetes mellitus and its complications in a population is considered. Since standard numerical methods can lead to numerical instabilities, it aims to solve the problem using a nonstandard method. Among the
İlkem Turhan Çetinkaya
doaj +1 more source
Non-Standard Discrete RothC Models for Soil Carbon Dynamics
Soil Organic Carbon (SOC) is one of the key indicators of land degradation. SOC positively affects soil functions with regard to habitats, biological diversity and soil fertility; therefore, a reduction in the SOC stock of soil results in degradation ...
Fasma Diele +2 more
doaj +1 more source
A definable nonstandard model of the reals [PDF]
AbstractWe prove, in ZFC, the existence of a definable, countably saturated elementary extension of the reals.
Vladimir Kanovei, Saharon Shelah
openaire +3 more sources
A hybrid fractional optimal control for a novel Coronavirus (2019-nCov) mathematical model
Introduction: Coronavirus COVID-19 pandemic is the defining global health crisis of our time and the greatest challenge we have faced since world war two. To describe this disease mathematically, we noted that COVID-19, due to uncertainties associated to
N.H. Sweilam +2 more
doaj +1 more source
Nonstandard Finite Difference Method Applied to a Linear Pharmacokinetics Model
We extend the nonstandard finite difference method of solution to the study of pharmacokinetic–pharmacodynamic models. Pharmacokinetic (PK) models are commonly used to predict drug concentrations that drive controlled intravenous (I.V.) transfers (or ...
Oluwaseun Egbelowo +2 more
doaj +1 more source

