中文
相关论文

相关论文: A fractional Traub method with $(2\alpha+1)$th-ord…

200 篇论文

The following document presents some novel numerical methods valid for one and several variables, which using the fractional derivative, allow to find solutions for some non-linear systems in the complex space using real initial conditions.…

数值分析 · 数学 2024-04-25 A. Torres-Hernandez , F. Brambila-Paz

In the following document, we present a way to obtain the order of convergence of the Fractional Newton-Raphson (F N-R) method, which seems to have an order of convergence at least linearly for the case in which the order $\alpha$ of the…

A method is given for finding roots of a one-variable function using Taylor's expansion of that function and fractional derivative calculated at a suitable tangent point without using Newton's method, but is regarded as a variant of Halley…

最优化与控制 · 数学 2023-03-10 Ali Dorostkar , Ahmad Sabihi

Finding roots of equations is at the heart of most computational science. A well-known and widely used iterative algorithm is the Newton's method. However, its convergence depends heavily on the initial guess, with poor choices often…

数值分析 · 数学 2020-04-09 Ankush Aggarwal , Sanjay Pant

We discuss a recursive family of iterative methods for the numerical approximation of roots of nonlinear functions in one variable. These methods are based on Newton-Cotes closed quadrature rules. We prove that when a quadrature rule with…

数值分析 · 数学 2014-09-10 Mario M. Graça , Pedro M. Lima

Many problems in applied mathematics require root finding algorithms. Unfortunately, root finding methods have limitations. Firstly, regarding the convergence, there is a trade-off between the size of it's domain and it's rate. Secondly the…

数值分析 · 数学 2023-09-06 Komi Agbalenyo , Vincent Cailliez , Jonathan Cailliez

We present and investigate a new type of implicit fractional linear multistep method of order two for fractional initial value problems. The method is obtained from the second order super convergence of the Gr\"unwald-Letnikov approximation…

数值分析 · 数学 2022-01-25 H. M. Nasir , Khadija Al Hasani

A zero-finding technique for solving nonlinear equations more efficiently than they usually are with traditional iterative methods in which the order of convergence is improved is presented. The key idea in deriving this procedure is to…

数值分析 · 数学 2011-06-07 Miquel Grau-Sánchez , José Luis Díaz-Barrero

The object of the present paper is to extend the third-order iterative method for solving nonlinear equations into systems of nonlinear equations. Since our motive is to develop the method which improve the order of convergence of Newton's…

数值分析 · 数学 2013-09-24 Anuradha Singh , J. P. Jaiswa

The Newton-Raphson (N-R) method is useful to find the roots of a polynomial of degree n. However, this method is limited since it diverges for the case in which polynomials only have complex roots if a real initial condition is taken. In…

数值分析 · 数学 2024-04-25 A. Torres-Hernandez , F. Brambila-Paz

In this article, we present an iterative method to find simple roots of nonlinear equations, that is, to solving an equation of the form $f(x) = 0$. Different from Newton's method, the method we purpose do not require evaluation of…

In this paper, we consider the problem of solving a constrained system of nonlinear equations. We propose an algorithm based on a combination of the Newton and conditional gradient methods, and establish its local convergence analysis. Our…

最优化与控制 · 数学 2016-08-25 Max L. N. Goncalves , Jefferson G. Melo

An iterative formula based on Newton Method alone is presented for the iterative solutions of equations that ensures convergence in cases where the traditional Newton Method may fail to converge to the desired root. In addition, the method…

数值分析 · 数学 2012-10-30 Ababu Teklemariam Tiruneh

We use Newton's method to find all roots of several polynomials in one complex variable of degree up to and exceeding one million and show that the method, applied to appropriately chosen starting points, can be turned into an algorithm…

数值分析 · 数学 2017-09-13 Dierk Schleicher , Robin Stoll

Computational methods for fractional differential equations exhibit essential instability. Even a minor modification of the coefficients or other entry data may switch good results to the divergent. The goal of this paper is to suggest the…

数值分析 · 数学 2021-12-20 P. B. Dubovski , J. A. Slepoi

Minimizing loss functions is central to machine-learning training. Although first-order methods dominate practical applications, higher-order techniques such as Newton's method can deliver greater accuracy and faster convergence, yet are…

机器学习 · 计算机科学 2025-11-25 Giuseppe Carrino , Elena Loli Piccolomini , Elisa Riccietti , Theo Mary

In this paper, we propose a third-order Newton's method which in each iteration solves a semidefinite program as a subproblem. Our approach is based on moving to the local minimum of the third-order Taylor expansion at each iteration,…

最优化与控制 · 数学 2023-06-08 Olha Silina , Jeffrey Zhang

Recently, a new fractional derivative called the conformable fractional derivative is given which is based on the basic limit definition of the derivative in [1]. Then, the fractional versions of chain rules, exponential functions,…

经典分析与常微分方程 · 数学 2016-02-19 Emrahünal , Ahmet Gökdoğan

In this article, we introduce two families of novel fractional $\theta$-methods by constructing some new generating functions to discretize the Riemann-Liouville fractional calculus operator $\mathit{I}^{\alpha}$ with a second order…

数值分析 · 数学 2024-10-07 BaoLi Yin , Yang Liu , Hong Li , Zhimin Zhang

Newton method is one of the most powerful methods for finding solutions of nonlinear equations and for proving their existence. In its "pure" form it has fast convergence near the solution, but small convergence domain. On the other hand…

最优化与控制 · 数学 2019-08-27 Boris Polyak , Andrey Tremba
‹ 上一页 1 2 3 10 下一页 ›