Results 11 to 20 of about 160 (66)

Fractal and fractional dynamics for a 3D autonomous and two-wing smooth chaotic system

open access: yesAlexandria Engineering Journal, 2020
Some existing chaotic systems cannot display dynamics with attractors showing a fractal representation. This is due, not only to the nature of the phenomenon under description, but also to the type of derivative operator used to express the whole model ...
Emile F. Doungmo Goufo
doaj   +1 more source

An optimal order yielding discrepancy principle for simplified regularization of ill‐posed problems in Hilbert scales

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 39, Page 2487-2499, 2003., 2003
Recently, Tautenhahn and Hämarik (1999) have considered a monotone rule as a parameter choice strategy for choosing the regularization parameter while considering approximate solution of an ill‐posed operator equation Tx = y, where T is a bounded linear operator between Hilbert spaces.
Santhosh George, M. Thamban Nair
wiley   +1 more source

An iterative approach to a constrained least squares problem

open access: yesAbstract and Applied Analysis, Volume 2003, Issue 8, Page 503-512, 2003., 2003
A constrained least squares problem in a Hilbert space H is considered. The standard Tikhonov regularization method is used. In the case where the set of the constraints is the nonempty intersection of a finite collection of closed convex subsets of H, an iterative algorithm is designed.
Simeon Reich, Hong-Kun Xu
wiley   +1 more source

Strong convergence of a self-adaptive method for the split feasibility problem

open access: yes, 2013
Self-adaptive methods which permit step-sizes being selected self-adaptively are effective methods for solving some important problems, e.g., variational inequality problems.
Yonghong Yao, M. Postolache, Y. Liou
semanticscholar   +1 more source

Stable Approximations of a Minimal Surface Problem with Variational Inequalities

open access: yesAbstract and Applied Analysis, Volume 2, Issue 1-2, Page 137-161, 1997., 1997
In this paper we develop a new approach for the stable approximation of a minimal surface problem associated with a relaxed Dirichlet problem in the space BV(Ω) of functions of bounded variation. The problem can be reformulated as an unconstrained minimization problem of a functional 𝒥 on BV(Ω) defined by 𝒥(u) = 𝒜(u) + ∫∂Ω|Tu − Φ|, where 𝒜(u) is the ...
M. Zuhair Nashed, Otmar Scherzer
wiley   +1 more source

Local Convergence and Radius of Convergence for Modified Newton Method

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2017
We investigate the local convergence of modified Newton method, i.e., the classical Newton method in which the derivative is periodically re-evaluated.
Măruşter Ştefan
doaj   +1 more source

The implicit midpoint rule for nonexpansive mappings

open access: yes, 2014
The implicit midpoint rule (IMR) for nonexpansive mappings is established. The IMR generates a sequence by an implicit algorithm. Weak convergence of this algorithm is proved in a Hilbert space.
M. Alghamdi   +3 more
semanticscholar   +1 more source

Stable discretization methods with external approximation schemes

open access: yesInternational Journal of Stochastic Analysis, Volume 8, Issue 4, Page 405-413, 1995., 1995
We investigate the external approximation‐solvability of nonlinear equations‐ an upgrade of the external approximation scheme of Schumann and Zeidler [3] in the context of the difference method for quasilinear elliptic differential equations.
Ram U. Verma
wiley   +1 more source

Algorithms with strong convergence for the split common solution of the feasibility problem and fixed point problem

open access: yes, 2014
The purpose of this paper is to study the split feasibility problem and fixed point problem involved in the pseudocontractive mappings. We construct an iterative algorithm and prove its strong convergence. MSC:47J25, 47H09, 65J15, 90C25.
Yonghong Yao   +3 more
semanticscholar   +1 more source

On iterative solution of nonlinear functional equations in a metric space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 6, Issue 1, Page 161-170, 1983., 1983
Given that A and P as nonlinear onto and into self‐mappings of a complete metric space R, we offer here a constructive proof of the existence of the unique solution of the operator equation Au = Pu, where u ∈ R, by considering the iterative sequence Aun+1 = Pun (u0 prechosen, n = 0, 1, 2, …).
Rabindranath Sen, Sulekha Mukherjee
wiley   +1 more source

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