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This paper describes a new MATLAB software package of iterative regularization methods and test problems for large-scale linear inverse problems. The software package, called IR Tools, serves two related purposes: we provide implementations…

数值分析 · 数学 2018-07-03 Silvia Gazzola , Per Christian Hansen , James G. Nagy

In this paper, we prove some theorems related to properties of generalized symmetric hybrid mappings in Banach spaces. Using Banach limits, we prove a fixed point theorem for symmetric generalized hybrid mappings in Banach spaces. Moreover,…

泛函分析 · 数学 2014-11-25 Fridoun Moradlou , Sattar Alizadeh

We introduce and analyze a fast iterative method based on sequential Bregman projections for nonlinear inverse problems in Banach spaces. The key idea, in contrast to the standard Landweber method, is to use multiple search directions per…

数值分析 · 数学 2018-08-01 Anne Wald

An iterative map of the unit disc in the complex plane (Appendix) is used to explore certain aspects of selfdual, four dimensional gauge fields (quasi)periodic in the Euclidean time. These fields are characterized by two topological numbers…

高能物理 - 理论 · 物理学 2009-10-30 A. Chakrabarti

In this paper we introduce expansive iterated function systems, ( IFS) on a compact metric space then various shadowing properties and their equivalence are considered for expansive IFS.

动力系统 · 数学 2017-01-03 Mehdi Fatehi Nia

Let $\left( X,\left\Vert \cdot\right\Vert_{X}\right) $ and $\left( Y,\left\Vert \cdot\right\Vert_{Y}\right) $ be Banach spaces over $\mathbb{R},$ with $X$ uniformly convex and compactly embedded into $Y.$ The inverse iteration method is…

偏微分方程分析 · 数学 2018-10-16 Grey Ercole

In this paper, some new Gronwall type inequalities involving iterated integrals are given.

经典分析与常微分方程 · 数学 2007-05-23 Y. J. Cho , S. S. Dragomir , Y. -H. Kim

A method is presented in which matrix elements for some processes are calculated recursively. This recursive calculational technique is based on the method of basis spinors.

高能物理 - 唯象学 · 物理学 2007-05-23 V. V. Andreev

The Law of the Iterated Logarithm for some Markov operators, which converge exponentially to the invariant measure, is established. The operators correspond to iterated function systems which, for example, may be used to generalize the cell…

概率论 · 数学 2016-03-23 Sander C. Hille , Katarzyna Horbacz , Tomasz Szarek , Hanna Wojewódka

Recursive stochastic algorithms have gained significant attention in the recent past due to data driven applications. Examples include stochastic gradient descent for solving large-scale optimization problems and empirical dynamic…

机器学习 · 计算机科学 2020-07-27 Abhishek Gupta , Hao Chen , Jianzong Pi , Gaurav Tendolkar

A family of fixed-point iterations is proposed for the numerical computation of traveling waves and localized ground states. The methods are extended versions of Petviashvili type, and they are applicable when the nonlinear term of the…

数值分析 · 数学 2015-06-17 J. Alvarez , A. Duran

An iterative method is derived for image reconstruction. Among other attributes, this method allows constraints unrelated to the radiation measurements to be incorporated into the reconstructed image. A comparison is made with the widely…

计算物理 · 物理学 2011-01-06 Clinton DeW. Van Siclen

In this paper we propose an extension of the iteratively regularized Gauss--Newton method to the Banach space setting by defining the iterates via convex optimization problems. We consider some a posteriori stopping rules to terminate the…

数值分析 · 数学 2013-06-11 Qinian Jin , Min Zhong

Linear fractional Galton-Watson branching processes in i.i.d.~random environment are, on the quenched level, intimately connected to random difference equations by the evolution of the random parameters of their linear fractional marginals.…

概率论 · 数学 2021-10-01 Gerold Alsmeyer

Iterative minimization algorithms appear in various areas including machine learning, neural networks, and information theory.The em algorithm is one of the famous iterative minimization algorithms in the area of machine learning, and the…

信息论 · 计算机科学 2024-09-10 Masahito Hayashi

We introduce a new extragradient iterative process, motivated and inspired by [S. H. Khan, A Picard-Mann Hybrid Iterative Process, Fixed Point Theory and Applications, doi:10.1186/1687-1812-2013-69], for finding a common element of the set…

泛函分析 · 数学 2014-03-14 Ibrahim Karahan , Murat Ozdemir

In this paper, we introduce three new iterative methods for finding a common point of the set of fixed points of a symmetric generalized hybrid mapping and the set of solutions of an equilibrium problem in a real Hilbert space. Each method…

最优化与控制 · 数学 2018-05-08 Bui Van Dinh , Nguyen Ngoc Hai , Do Sang Kim

This paper introduces iterated monodromy groups for transcendental functions and discusses them in the simplest setting, for post-singularly finite exponential functions. These groups are self-similar groups in a natural way, based on an…

动力系统 · 数学 2020-04-28 Bernhard Reinke

Infinite time Turing machines are extended in several ways to allow for iterated oracle calls. The expressive power of these machines is discussed and in some cases determined.

逻辑 · 数学 2015-10-05 Robert Lubarsky

We review the method of the differential equations for the evaluation of multi-loop Feynman integrals. In particular, we focus on the series expansion approach for solving the system of differential equation and we discuss how to perform…

高能物理 - 唯象学 · 物理学 2025-11-21 Tommaso Armadillo