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Related papers: Almost summing mappings

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This paper investigates summability principles for multilinear summing operators. The main result presents a novel inclusion theorem for a class of summing operators, which generalizes several classical results. As applications, we derive…

Functional Analysis · Mathematics 2025-04-04 Nacib Albuquerque , Gustavo Araújo , Lisiane Rezende , Joedson Santos

We present a method for computing the topological entropy of one-dimensional maps. As an approximation scheme, the algorithm converges rapidly and provides both upper and lower bounds.

chao-dyn · Physics 2009-10-22 N. J. Balmforth , E. A. Spiegel , C. Tresser

Using the notion of modulus of continuity at a point of a mapping between metric spaces, we introduce the notion of extensively bounded mappings generalizing that of Lipschitz mappings. We also introduce a metric on it which becomes a norm…

Functional Analysis · Mathematics 2025-01-06 Anil Kumar Karn , Arindam Mandal

Various versions of the classical definitions of (one- and twosided) almost periodicity for functions on groups with values in a uniform space are formulated and their equivalence is shown.

Functional Analysis · Mathematics 2013-03-12 H. Günzler

Unifying several directions of the development of the study of summing multilinear operators between Banach spaces, we construct a general framework that studies, under one single definition, multilinear operators that are summing with…

Functional Analysis · Mathematics 2020-01-14 Geraldo Botelho , Davidson F. Nogueira

Approximation of entire functions by their pad\'e approximants has been examined in the past. It is true that generically such an approximation holds. However, examining this problem from another viewpoint, we obtain stronger generic…

Complex Variables · Mathematics 2011-05-17 G. Fournodavlos

Consider a self-similar space X. A typical situation is that X looks like several copies of itself glued to several copies of another space Y, and Y looks like several copies of itself glued to several copies of X, or the same kind of thing…

Dynamical Systems · Mathematics 2007-05-23 Tom Leinster

In this paper, we will discuss the notion of almost orthogonality in a functional sequence.Especially, we will define a few sequences of almost orthogonal polynomials which can be used successfully for modeling of electronic systems which…

Numerical Analysis · Mathematics 2010-07-22 Predrag Rajkovic , Sladjana Marinkovic

Almost automorphy in the context of hyperfunctions is the main aim of this work. We give different equivalent definitions of almost automorphic hyperfunctions and then we study this class of hyperfunctions.

Functional Analysis · Mathematics 2024-12-16 Chikh Bouzar , Amel Boudellal

In this article we introduce the concept of almost $\mathcal{P}$-numbers. We survey the existing results in literature for almost cyclic numbers and give characterizations for almost abelian and almost nilpotent numbers proving these two…

Group Theory · Mathematics 2024-08-19 Iulia Cătălina Pleşca , Marius Tărnăuceanu

In this paper we give various characterizations of quasiopen sets and quasicontinuous functions on metric spaces. For complete metric spaces equipped with a doubling measure supporting a p-Poincar\'e inequality we show that quasiopen and…

Functional Analysis · Mathematics 2017-02-13 Anders Björn , Jana Björn , Jan Malý

We consider a generalized Gauss sum supported on matrices over a number field. We evaluate this Gauss sum and relate it to the number of totally isotropic subspaces of related quadratic spaces. Then we consider a further generalization of…

Number Theory · Mathematics 2017-08-29 Lynne Walling

By employing certain extended classical summation theorems, several surprising \pi and other formulae are displayed.

Number Theory · Mathematics 2012-05-31 Yong Sup Kim , Xiaoxia Wang , Arjun K. Rathie

There is a well-known correspondence between infinite trees and ultrametric spaces which can be interpreted as an equivalence of categories and comes from considering the end space of the tree. In this equivalence, uniformly continuous maps…

Geometric Topology · Mathematics 2007-05-23 Álvaro Martínez Pérez , M. A. Morón

We classify the metric spaces that can be approximated by finite homogeneous ones.

Group Theory · Mathematics 2013-03-21 Tsachik Gelander

We introduce the notions of almost positively closed models and positive strong amalgamation property. We study the fundamental properties of these notions and develop some interactions between them.

Logic · Mathematics 2022-12-05 Mohammed Belkasmi

In this work we present a definition for coherence and compatibility of multilinear mappings and homogenous polynomial classes. These definitions are more restricted than the ones proposed before. We began analyzing this new definition in a…

Functional Analysis · Mathematics 2018-10-24 Joilson Ribeiro , Fabrício Santos , Ewerton Torres

We propose the concepts of vicinal mappings and firmly vicinal mappings in metric spaces. We obtain fixed point and convergence theorems for these mappings in complete geodesic spaces with curvature bounded above by one and apply our…

Functional Analysis · Mathematics 2018-05-01 Fumiaki Kohsaka

In this work, we Extend Pawlak approximation spaces by topological spaces. Also, Rough Membership, equality and inclusion relations are extended using topological near open sets. In addition, new extended measures of accuracy and quality of…

General Topology · Mathematics 2019-08-19 A. S. Salama , O. G. Elbarbary

We generalize the classical K\"onig's and B\"ottcher's Theorems in complex dynamics to certain quasiregular mappings in the plane. Our approach to these results is unified in the sense that it does not depend on the local injectivity, or…

Complex Variables · Mathematics 2023-08-21 Alastair N. Fletcher , Jacob Pratscher