Results 51 to 60 of about 14,242,248 (191)

Uniformly convergent numerical method for time-fractional convection–diffusion equation with variable coefficients

Partial Differential Equations in Applied Mathematics, 2023
This paper presents a uniformly convergent numerical scheme for singularly perturbed fractional order convection–diffusion equations with variable coefficients. First, the time-fractional derivative is considered in the Caputo sense and treated using the
Worku Tilahun Aniley, Gemechis File Duressa   +1 more
doaj   +1 more source

A highly accurate numerical method for solving boundary value problem of generalized Bagley‐Torvik equation

Mathematical Methods in the Applied Sciences, EarlyView.
A highly accurate numerical method is given for the solution of boundary value problem of generalized Bagley‐Torvik (BgT) equation with Caputo derivative of order 0<β<2$$ 0<\beta <2 $$ by using the collocation‐shooting method (C‐SM). The collocation solution is constructed in the space Sm+1(1)$$ {S}_{m+1}^{(1)} $$ as piecewise polynomials of degree at ...
Suzan Cival Buranay, Mtema James Chin, Nazim I. Mahmudov   +2 more
wiley   +1 more source

How Does Progressivity Affect the Tax Cut Multiplier?

International Economic Review, EarlyView.
ABSTRACT How does the targeting of personal income tax cuts affect the output multiplier? This paper provides quantitative evidence using a heterogeneous‐agent New‐Keynesian model calibrated to match US distributions of income, wealth, marginal tax rates, and marginal propensities to consume.
Christian Gillitzer
wiley   +1 more source

Nonstandard finite difference schemes for fractional order Brusselator system [PDF]

, 2013
In this paper we discuss numerical methods for fractional order problems. Some nonstandard finite difference schemes are presented and investigated. The application in the simulation of a fractional order Brusselator system is hence presented.
Arslan D, Mevlüde Ongun, Roberto Garrappa, Ongun MY, GARRAPPA, Roberto, Damla Arslan   +5 more
core   +1 more source

Nonstandard finite difference method for time-fractional singularly perturbed convection–diffusion problems with a delay in time

Results in Applied Mathematics
In this work, nonstandard finite difference method is presented for the numerical solution of time-fractional singularly perturbed convection–diffusion problems with a delay in time.
Worku Tilahun Aniley, Gemechis File Duressa   +1 more
doaj   +1 more source

A Non‐Parametric Framework for Correlation Functions on Product Metric Spaces

International Statistical Review, EarlyView.
Summary We propose a non‐parametric framework for analysing data defined over products of metric spaces, a versatile class encountered in various fields. This framework accommodates non‐stationarity and seasonality and is applicable to both local and global domains, such as the Earth's surface, as well as domains evolving over linear time or time ...
Pier Giovanni Bissiri, Bernardo Nipoti, Emilio Porcu, Philip White   +3 more
wiley   +1 more source

The solution of some differential equations by nonstandard finite difference method [PDF]

, 2005
Thesis (Master)--Izmir Institute of Technology, Mathematics, Izmir, 2005Includes bibliographical references (leaves: 55-57)Text in English; Abstract: Turkish and Englishix, 66 leavesIn this thesis, the nonstandard finite difference method is applied to ...
Kıran Güçoğlu, Arzu
core   +1 more source

Numerical treatments for some stochastic–deterministic chaotic systems

Results in Physics, 2022
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, S.M. AL-Mekhlafi, S.M. Hassan, N.R. Alsenaideh, A.E. Radwan   +4 more
doaj   +1 more source

Moving Aggregate Modified Autoregressive Copula‐Based Time Series Models (MAGMAR‐Copulas)

Journal of Time Series Analysis, EarlyView.
ABSTRACT Copula‐based time series models can model univariate and stationary time series in a flexible way by decomposing the joint distribution of consecutive observations into a copula and the stationary distribution. Implicitly, this approach assumes a finite Markov order. In reality, a time series may not follow the Markov property.
Sven Pappert
wiley   +1 more source

Nonstandard Finite Difference Variational Integrators for Multisymplectic PDEs [PDF]

, 2012
We use the idea of nonstandard finite difference methods to derive the discrete variational integrators for multisymplectic PDEs. We obtain a nonstandard finite difference variational integrator for linear wave equation with a triangle discretization and
Xiaohua Ding, Cuicui Liao
core   +1 more source