Results 61 to 70 of about 243,988 (164)

When Uniformly-continuous Implies Bounded

open access: yesIrish Mathematical Society Bulletin, 2004
Let (X,p) and (Y,σ) be metric spaces. A function f : X → Y is (by definition) bounded if the image of f has finite σ-diameter. It is well-known that if X is compact then each continuous f : X → Y is bounded.
A. O’Farrell
semanticscholar   +1 more source

On ω-Limit Sets of Zadeh’s Extension of Nonautonomous Discrete Systems on an Interval

open access: yesMathematics, 2019
Let I = [ 0 , 1 ] and f n be a sequence of continuous self-maps on I which converge uniformly to a self-map f on I. Denote by F ( I ) the set of fuzzy numbers on I, and denote by ( F ( I ) , f ^ ) and ( F ( I ) ,
Guangwang Su, Taixiang Sun
doaj   +1 more source

Existence, uniqueness and stability of equilibrium states for non-uniformly expanding maps [PDF]

open access: yes, 2008
We prove existence of finitely many ergodic equilibrium states for a large class of non-uniformly expanding local homeomorphisms on compact metric spaces and Holder continuous potentials with not very large oscillation. No Markov structure is assumed. If
P. Varandas, M. Viana
semanticscholar   +1 more source

STRONG CONVERGENCE FOR THREE CLASSES OF UNIFORMLY EQUI-CONTINUOUS AND ASYMPTOTICALLY QUASI-NONEXPANSIVE MAPPINGS [PDF]

open access: yesJournal of the Korean Mathematical Society, 2008
In this paper, we introduce a modified three-step iteration scheme with errors for three classes of uniformly equi-continuous and asymptotically quasi-nonexpansive mappings in the framework of uniformly convex Banach spaces. We then use this scheme to approximate a common fixed point of these mappings.
Xiaolong Qin, Yongfu Su, Meijuan Shang
openaire   +1 more source

Assessing lagoon plume dispersion under variable metocean conditions

open access: yesFrontiers in Environmental Engineering
Coastal lagoons are ecologically sensitive environments that are highly vulnerable to anthropogenic pressures and pollutant dispersal. Understanding how pollutants move within these systems lays the groundwork for managing water quality and mitigating ...
Mattia Scovenna, Giovanni Besio
doaj   +1 more source

Uniformly continuous maps between ends of R-trees

open access: yes, 2007
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 between the end spaces are translated to some classes of coarse maps (or even classes of metrically proper ...
Pérez, Álvaro Martínez, Morón, M. A.
openaire   +2 more sources

Time-Frequency Feature-Guided Progressive Attention DenseNet for Audio-Magnetotelluric Noise Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The audio-magnetotelluric (AMT) sounding method has been widely applied in mineral exploration and engineering geology. Unfortunately, field-observed signals are often contaminated by various random noises, causing the signal-to-noise ratio (SNR) to ...
Dian Hong   +5 more
doaj   +1 more source

Hot deformation behavior and hot working window of a solid solution strengthened Ni–Cr–Fe-based superalloy

open access: yesJournal of Materials Research and Technology
The hot deformation behavior of Ni–Cr–Fe-based ChS57 alloy was investigated by isothermal compression tests in the temperature range of 1000–1200 °C with strain rates covering 0.001–10 s−1.
Shuai Gao   +5 more
doaj   +1 more source

Hölder continuous retractions and amenable semigroups of uniformly Lipschitzian mappings in Hilbert spaces [PDF]

open access: yesTopological Methods in Nonlinear Analysis, 2016
Suppose that S is a left amenable semitopological semigroup. We prove that if ${T_{t}: t \in S}$ is a uniformly k-Lipschitzian semigroup on a bounded closed and convex subset C of a Hilbert space and ...
openaire   +3 more sources

The Omega metric: a Hessian geometry for finite-depth structural variation

open access: yesFrontiers in Physics
Complex systems exhibit not only increasing disorder but also the emergence of structured organization across space, time, and scale. The finite–depth Intropy framework formalized this interplay through a discrete structural potential profile Ω(k) and ...
Patrick Bini
doaj   +1 more source

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