Results 101 to 110 of about 1,874,752 (330)

Analytic and empirical study of the rate of convergence of some iterative methods

open access: yesJournal of Numerical Analysis and Approximation Theory, 2015
We study analytically and empirically the rate of convergence of two \(k\)-step fixed point iterative methods in the family of methods \[ x_{n+1}=T(x_{i_0+n-k+1},x_{i_1+n-k+1},\dots, x_{{i_{k-1}+n-k+1}}),\,n\geq k-1, \] where \(T\colon X^k\rightarrow ...
Vasile Berinde   +2 more
doaj   +2 more sources

Tamper-evident Image using JPEG Fixed Points [PDF]

open access: yesarXiv
An intriguing phenomenon about JPEG compression has been observed since two decades ago- after repeating JPEG compression and decompression, it leads to a stable image that does not change anymore, which is a fixed point. In this work, we prove the existence of fixed points in the essential JPEG procedures. We analyze JPEG compression and decompression
arxiv  

Application of Liapunov’s direct method to fixed point theorems [PDF]

open access: bronze, 1971
Jonathan H. George   +2 more
openalex   +1 more source

Combined spatially resolved metabolomics and spatial transcriptomics reveal the mechanism of RACK1‐mediated fatty acid synthesis

open access: yesMolecular Oncology, EarlyView.
The authors analyzed the spatial distributions of gene and metabolite profiles in cervical cancer through spatial transcriptomic and spatially resolved metabolomic techniques. Pivotal genes and metabolites within these cases were then identified and validated.
Lixiu Xu   +3 more
wiley   +1 more source

A New Extragradient-Viscosity Method for a Variational Inequality, an Equilibrium Problem, and a Fixed Point Problem

open access: yesMathematics
In this research article, we introduce a novel iterative approach that builds upon a two-step extragradient-viscosity method. This method aims to find a common element among the solution set of a variational inequality, an equilibrium problem, and the ...
Maryam Yazdi, Saeed Hashemi Sababe
doaj   +1 more source

Structural index reduction algorithms for differential algebraic equations via fixed-point iteration [PDF]

open access: yesarXiv, 2014
Motivated by Pryce's structural index reduction method for differential algebraic equations (DAEs), we show the complexity of the fixed-point iteration algorithm and propose a fixed-point iteration method with parameters. It leads to a block fixed-point iteration method which can be applied to large-scale DAEs with block upper triangular structure ...
arxiv  

ITERATIVE METHODS FOR APPROXIMATION OF FIXED POINTS AND THEIR APPLICATIONS [PDF]

open access: yesJournal of the Operations Research Society of Japan, 2000
In this article, we deal with iterative methods for approximation of fixed points and their applications. We first discuss fixed point theorems for a nonexpansive mapping or a family of nonexpansive mappings. In particular, we state a fixed point theorem which answered affirmatively a problem posed during the Conference on Fixed Point Theory and ...
openaire   +2 more sources

Circulating tumor DNA (ctDNA) trajectories predict survival in trifluridine/tipiracil‐treated metastatic colorectal cancer patients

open access: yesMolecular Oncology, EarlyView.
The authors applied joint/mixed models that predict mortality of trifluridine/tipiracil‐treated metastatic colorectal cancer patients based on circulating tumor DNA (ctDNA) trajectories. Patients at high risk of death could be spared aggressive therapy with the prospect of a higher quality of life in their remaining lifetime, whereas patients with a ...
Matthias Unseld   +7 more
wiley   +1 more source

Shrinking projection method for proximal split feasibility and fixed point problems

open access: yesResults in Nonlinear Analysis, 2019
In this paper, we consider and study proximal split feasibility and fixed point problem. For solving the problems, we introduce an iterative algorithm with shrinking projection technique. It is proven that the sequence generated by the proposed iterative
Jinzuo Chen
doaj  

Majorization fixed point principle and application to nonlinear integral equations [PDF]

open access: yesarXiv, 2011
The successive approximations method allows us to solve problems concerning existence and uniqueness of fixed points of wide classes of operators. The classical result in this field, such as Banach -- Caccioppoli principle together with some its modification and generalisations, is applicable to operators satisfying Lipschitz condition with a small ...
arxiv  

Home - About - Disclaimer - Privacy