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This paper first proves two fixed point theorems in complete random normed modules, which are respectively the random generalizations of the classical Banach's contraction mapping principle and Browder--Kirk's fixed point theorem. As…

泛函分析 · 数学 2018-11-29 Tiexin Guo , Erxin Zhang , Yachao Wang , ZiChen Guo

Bregman proximal-type algorithms (BPs), such as mirror descent, have become popular tools in machine learning and data science for exploiting problem structures through non-Euclidean geometries. In this paper, we show that BPs can get…

最优化与控制 · 数学 2026-05-26 He Chen , Jiajin Li , Anthony Man-Cho So

In this paper, we introduce a new iterative method to find a common solution of a generalized mixed equilibrium problem, a variational inequality problem and a hierarchical fixed point problem for a demicontinuous nearly nonexpansive…

泛函分析 · 数学 2014-09-17 Ibrahim Karahan

We study the differential properties of generalized arc schemes, and geometric versions of Kolchin's Irreducibility Theorem over arbitrary base fields. As an intermediate step, we prove an approximation result for arcs by algebraic curves.

代数几何 · 数学 2009-01-14 Johannes Nicaise , Julien Sebag

In this paper, we study the existence of fixed points for mappings defined on complete (compact) metric space (X, d) satisfying a general contractive (contraction) inequality depended on another function. These conditions are analogous to…

泛函分析 · 数学 2009-03-10 A. Beiranvand , S. Moradi , M. Omid , H. Pazandeh

In this paper we introduce and study new classes of mappings in metric spaces. The main class of mappings is called generalized orbital triangular contractions and it generalizes some existing results (such as Banach contractions, mappings…

一般拓扑 · 数学 2024-04-25 Cristina Maria Pacurar , Ovidiu Popescu

We analyze Bergman spaces A p f (D) of generalized analytic functions of solutions to the Vekua equation $\partial$w = ($\partial$f /f)w in the unit disc of the complex plane, for Lipschitz-smooth non-vanishing real valued functions f and 1…

偏微分方程分析 · 数学 2020-09-07 Briceyda Delgado , Juliette Leblond

In this paper, we establish some new fixed point theorems and coincidence point theorems for essential distances and $e^{0}$-metrics which generalize and improve Berinde-Berinde's fixed point theorem, Mizoguchi-Takahashi's fixed point…

泛函分析 · 数学 2019-07-16 Wei-Shih Du

In this work, we deal with an iteration method for approximating a fixed point of a contraction mapping using the Mann's algorithm under functional random errors. We first show its almost complete convergence to the fixed point by mean of…

概率论 · 数学 2017-01-24 Bahia Barache , Idir Arab , Abdelnasser Dahmani

This paper provides a fixed point theorem for asymptotically nonexpansive mappings in uniformly convex hyperbolic spaces as well as new effective results on the Krasnoselski-Mann iterations of such mappings. The latter were found using…

泛函分析 · 数学 2008-03-26 Ulrich Kohlenbach , Laurentiu Leustean

In information geometry, generalized exponential families and statistical manifolds with curvature are under active investigation in recent years. In this paper we consider the statistical manifold induced by a logarithmic…

微分几何 · 数学 2021-05-18 Zhixu Tao , Ting-Kam Leonard Wong

In this paper, we prove that the product of strongly quasi-nonexpansive $\Delta$-demiclosed mappings is also a strongly quasi-nonexpansive orbital $\Delta$-demiclosed mapping in Hadamard spaces. Additionally, we establish the…

泛函分析 · 数学 2025-05-01 Wiparat Worapitpong , Parin Chaipunya , Poom Kumam , Sakan Termkaew

We discuss the asymptotic behaviour of random critical Boltzmann planar maps in which the degree of a typical face belongs to the domain of attraction of a stable law with index $\alpha \in (1,2]$. We prove that when conditioning such maps…

概率论 · 数学 2018-10-25 Cyril Marzouk

We show that for almost every map in a transversal one-parameter family of piecewise expanding unimodal maps the Birkhoff sum of suitable observables along the forward orbit of the turning point satisfies the law of iterated logarithm. This…

动力系统 · 数学 2013-09-10 Daniel Schnellmann

Suppose that E is a Banach space, {\tau} a topology under which the norm of E becomes {\tau}-lower semicontinuous and S a commuting family of {\tau}-continuous nonexpansive mappings defined on a {\tau}-compact convex subset C of E: It is…

泛函分析 · 数学 2018-11-05 Sławomir Borzdyński

We introduce and analyze BPALM and A-BPALM, two multi-block proximal alternating linearized minimization algorithms using Bregman distances for solving structured nonconvex problems. The objective function is the sum of a multi-block…

最优化与控制 · 数学 2021-12-20 Masoud Ahookhosh , Le Thi Khanh Hien , Nicolas Gillis , Panagiotis Patrinos

This paper provides uniform bounds on the asymptotic regularity for iterations associated to a finite family of nonexpansive mappings. We obtain our quantitative results in the setting of $(r,\delta)$-convex spaces, a class of geodesic…

泛函分析 · 数学 2013-09-17 Laurentiu Leustean , Adriana Nicolae

This paper introduce a new class of operators and contraction mapping for a cyclical map T on G-metric spaces and the approximately fixed point properties. Also,we prove two general lemmas regarding approximate fixed Point of cyclical…

动力系统 · 数学 2020-06-29 S. A. M. Mohsenialhosseini

We study the existence and approximation of fixed points of metrically nonspreading mappings and firmly metrically nonspreading mappings in Hadamard spaces. The resolvents of monotone operators satisfying range conditions are typical…

泛函分析 · 数学 2019-10-01 Fumiaki Kohsaka

Demiclosedness principles are powerful tools in the study of convergence of iterative methods. For instance, a multi-operator demiclosedness principle for firmly nonexpansive mappings is useful in obtaining simple and transparent arguments…

最优化与控制 · 数学 2020-08-25 Sedi Bartz , Rubén Campoy , Hung M. Phan