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相关论文: Fixed Point Property of Amenable Planar Vortexes

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In this paper, we introduce an extension of rectangular metric spaces called controlled rectangular metric spaces, by changing the rectangular inequality as follows: \begin{equation*} d(x, y)\leq\alpha(x, u)d(x, u)+\alpha(u, v)d(u,…

一般拓扑 · 数学 2022-01-19 Mohamed Rossafi , Abdelkarim Kari

Given a sequence $(C_1,\ldots,C_d,T_1,T_2,\ldots)$ of real-valued random variables with $N := \#\{j \geq 1: T_j \not = 0\} < \infty$ almost surely, there is an associated smoothing transformation which maps a distribution $P$ on…

概率论 · 数学 2014-02-19 Alexander Iksanov , Matthias Meiners

The main aim of this paper is to study of fixed point theory in partial cone metric spaces. Infact, some common fixed point theorems for two mappings in partial cone metric spaces are obtained.

泛函分析 · 数学 2022-08-16 Tayebe Lal Shateri

In this paper we study analogues of amenability for topological groups in the context of definable structures. We prove fixed point theorems for such groups. More importantly, we propose definitions for definable actions and continuous…

逻辑 · 数学 2018-12-14 Alf Onshuus , Luis Carlos Suárez

We prove a fixed point theorem for the action of certain local monodromy groups on \'etale covers and use it to deduce lower bounds in essential dimension. In particular, we give more geometric proofs of many (but not all) of the results of…

代数几何 · 数学 2020-07-21 Patrick Brosnan , Najmuddin Fakhruddin

In this paper the notion of modular cone metric space is introduced and some properties of such spaces are investigated. Also we define convex modular cone metric which takes values in CR(Y) where Y is a compact Hausdorff space. Then a…

泛函分析 · 数学 2013-10-15 Saeedeh Shamsi Gamchi , Mohammad Janfada , Asadollah Niknam

In honor of Minkowski's great contribution to Special Relativity, celebrated at this conference, we first review Wigner's theory of the projective irreducible representations of the inhomogeneous Lorentz group. We also sketch those parts of…

数学物理 · 物理学 2008-09-30 Norbert Straumann

We show that there are no nontrivial surjective uniformly asymptotically regular mappings acting on a metric space and derive some consequences of this fact. In particular, we prove that a jointly continuous left amenable or left reversible…

泛函分析 · 数学 2016-12-20 Sławomir Borzdyński , Andrzej Wiśnicki

In this paper, we establish a common fixed point theorem for two pairs of occasionally weakly compatible single and set-valued maps satisfying a strict contractive condition in a metric space. Our result extends many results existing in the…

泛函分析 · 数学 2009-06-17 Hakima Bouhadjera , Christiane Godet-Thobie

Property A introduced by Guoliang Yu is an amenability-type property for metric spaces. In this article, we study property A for uniformly locally finite coarse spaces. Main examples of coarse spaces are a metric space, a set equipped with…

度量几何 · 数学 2013-03-29 Hiroki Sako

We define the infinite dimensional simplex to be the closure of the convex hull of the standard basis vectors in R^infinity, and prove that this space has the 'fixed point property': any continuous function from the space into itself has a…

一般拓扑 · 数学 2007-08-28 Douglas Rizzolo , Francis Edward Su

A topological group $G$ has the Approximate Fixed Point (AFP) property on a bounded convex subset $C$ of a locally convex space if every continuous affine action of $G$ on $C$ admits a net $(x_i)$, $x_i\in C$, such that…

群论 · 数学 2021-02-18 Cleon S. Barroso , Brice R. Mbombo , Vladimir G. Pestov

This paper demonstrates the uniformly finite homology developed by Block and Weinberger and its relationship to amenable spaces via applications to the Cayley graph of Thompson's Group F. In particular, a certain class of subgraph of F is…

群论 · 数学 2009-03-11 Dan Staley

In this article, we discuss fixed point results for $(\varepsilon,\lambda)$-uniformly locally contractive self mapping defined on $\varepsilon$-chainable $G$-metric type spaces. In particular, we show that under some more general…

一般拓扑 · 数学 2017-02-24 Yaé Olatoundji Gaba

In this paper we generalize the results shown by Das and Peterson. Let $M$ be a ${\rm II}_1$-factor acting on $L^2(M)$. We consider certain unital normal completely positive maps on $B(L^2(M))$ which are identity on $M$. We investigate…

算子代数 · 数学 2021-03-09 Tomohiro Hayashi

The objective of this work is the construction of `Boyd-Wong fixed point theorem' in the setting of generalized parametric metric space and discussion its application on existence criteria of solutions to a second order initial value…

综合数学 · 数学 2024-10-16 Abhishikta Das , Hijaz Ahmad , T. Bag

We show that some abstract results on propagation of fixed points for completely positive maps on $C^*$-algebras provide a natural approach to unify recent Noether type theorems on the equivalence of symmetries with conservation laws for…

算子代数 · 数学 2025-11-04 Aurelian Gheondea

In this paper we prove some new fixed point theorems for multivalued mappings on orbitally complete uniform spaces.

一般拓扑 · 数学 2007-05-23 Duran Turkoglu , Brian Fisher

We establish topological local rigidity for uniform lattices in compactly generated groups, extending the result of Weil from the realm of Lie groups. We generalize the classical local rigidity theorem of Selberg, Calabi and Weil to…

群论 · 数学 2017-11-15 Tsachik Gelander , Arie Levit

We give a quick survey of the various fixed point theorems in computability theory, partial combinatory algebra, and the theory of numberings, as well as generalizations based on those. We also point out several open problems connected to…

逻辑 · 数学 2024-02-06 Sebastiaan A. Terwijn