Results 21 to 30 of about 19,658 (300)

Qualitatively Stable Nonstandard Finite Difference Scheme for Numerical Solution of the Nonlinear Black–Scholes Equation

open access: yesJournal of Mathematics, 2021
In this paper, we use a numerical method for solving the nonlinear Black–Scholes partial differential equation of the European option under transaction costs, which is based on the nonstandard discretization of the spatial derivatives.
Mohammad Mehdizadeh Khalsaraei   +3 more
doaj   +1 more source

Integrable cosmological models with an additional scalar field

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We consider modified gravity cosmological models that can be transformed into two-field chiral cosmological models by the conformal metric transformation.
Vsevolod R. Ivanov, Sergey Yu. Vernov
doaj   +1 more source

A New Numerical Scheme for Time Fractional Diffusive SEAIR Model with Non-Linear Incidence Rate: An Application to Computational Biology

open access: yesFractal and Fractional, 2022
In this paper, we propose a modified fractional diffusive SEAIR epidemic model with a nonlinear incidence rate. A constructed model of fractional partial differential equations (PDEs) is more general than the corresponding model of fractional ordinary ...
Yasir Nawaz   +2 more
doaj   +1 more source

Omega-inconsistency without cuts and nonstandard models

open access: yes, 2016
This paper concerns the relationship between transitivity of entailment, omega-inconsistency and nonstandard models of arithmetic. First, it provides a cut-free sequent calculus for non-transitive logic of truth STT based on Robinson Arithmetic and shows
Fjellstad, Andreas
core   +2 more sources

Racial disparities in receipt of standard chemoradiation in anal squamous cell carcinoma, an analysis of the National Cancer Database

open access: yesCancer Medicine, 2021
Background Standard treatment for locally advanced anal squamous cell carcinoma (SCC) consists of concurrent chemoradiation. We evaluated whether racial differences exist in the receipt of standard treatment and its association with survival.
Shelly X. Bian   +2 more
doaj   +1 more source

Non-standard neutrino interactions in light mediator models at reactor experiments

open access: yesJournal of High Energy Physics, 2023
Compared to other neutrino sources, the huge anti-neutrino fluxes at nuclear reactor based experiments empower us to derive stronger bounds on non-standard interactions of neutrinos with electrons mediated by light scalar/vector mediators.
Bhaskar Dutta   +4 more
doaj   +1 more source

A new crossover dynamics mathematical model of monkeypox disease based on fractional differential equations and the Ψ-Caputo derivative: Numerical treatments

open access: yesAlexandria Engineering Journal
A novel crossover model for monkeypox disease that incorporates Ψ-Caputo fractional derivatives is presented here, where we use a simple nonstandard kernel function Ψ(t).
N.H. Sweilam   +3 more
doaj   +1 more source

A Nonstandard Dynamically Consistent Numerical Scheme Applied to Obesity Dynamics

open access: yesJournal of Applied Mathematics, 2008
The obesity epidemic is considered a health concern of paramount importance in modern society. In this work, a nonstandard finite difference scheme has been developed with the aim to solve numerically a mathematical model for obesity population dynamics.
Rafael J. Villanueva   +2 more
doaj   +1 more source

A Nonstandard Neutrosophic Framework for Evaluating Intelligent Clothing Design Effectiveness under Multisource Perceptual and Functional Uncertainty [PDF]

open access: yesNeutrosophic Sets and Systems
Intelligent clothing systems are becoming increasingly embedded with responsive technologies to adapt to the user's environment, physiological state, and comfort preferences.
Kaixia Zhuo
doaj   +1 more source

Lexical Normalization Using Generative Transformer Model (LN-GTM)

open access: yesInternational Journal of Computational Intelligence Systems, 2023
Lexical Normalization (LN) aims to normalize a nonstandard text to a standard text. This problem is of extreme importance in natural language processing (NLP) when applying existing trained models to user-generated text on social media.
Mohamed Ashmawy   +2 more
doaj   +1 more source

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