Results 41 to 50 of about 165,958,490 (290)

On Continuity Properties of the Modulus of Local Contractibility

open access: yesJournal of Mathematical Analysis and Applications, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Repovš, Dušan, Semenov, Pavel V
openaire   +1 more source

Modulus of continuity of operator functions [PDF]

open access: yesSt. Petersburg Mathematical Journal, 2009
Summary: Let \(A\) and \(B\) be bounded selfadjoint operators on a separable Hilbert space, and let \(f\) be a continuous function defined on an interval \( [a,b]\) containing the spectra of \(A\) and \(B\). If \(\omega _f\) denotes the modulus of continuity of \(f\), then \[ \| f(A)-f(B)\| \leq 4\Big[\log\Big(\frac{b-a}{\| A-B\|}+1\Big)+1\Big]^2 \cdot
Farforovskaya, Yu. B., Nikolskaya, L.
openaire   +1 more source

Oscillation and modulus of continuity in uniform spaces

open access: yesApplied General Topology
The present paper introduces oscillation and modulus of continuity for functions on uniform spaces. Classical results are established in this framework.
Josiney A. Souza, Richard W. M. Alves
doaj   +1 more source

Best Multiplier Approximation of Unbounded Periodic Functions in L_(p,∅_n ) (B),B=[0,2π] Using Discrete Linear Positive Operators

open access: yesمجلة بغداد للعلوم, 2020
The purpose of this paper is to find the best multiplier approximation of unbounded functions in    –space by using some discrete linear positive operators.
Saheb AL- Saidy   +2 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Dunkl analogue of Szász-mirakjan operators of blending type

open access: yesOpen Mathematics, 2018
In the present work, we construct a Dunkl generalization of the modified Szász-Mirakjan operators of integral form defined by Pǎltanea [1]. We study the approximation properties of these operators including weighted Korovkin theorem, the rate of ...
Deshwal Sheetal   +2 more
doaj   +1 more source

Bernstein Polynomials and Modulus of Continuity

open access: yesJournal of Approximation Theory, 2000
The author describes several properties related to the first order modulus of continuity, which are preserved by the operator given by Bernstein polynomials. Let the function \(\omega(t)\) on \([0,1]\) be a modulus of continuity. By \(H^\omega\) we denote the class of continuous functions on \([0,1]\) satisfying the inequality \(\omega(f,t)\leq\omega(t)
openaire   +2 more sources

Optimization of the Production of Rubber Compounds Using Mathematical Models

open access: yesAdvanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle   +7 more
wiley   +1 more source

Weaker forms of continuity [PDF]

open access: yes, 1972
This paper is concerned with a study of various weaker forms of continuity. The definitions originated in [1], [2], and [4] . In Chapter I, the definitions of several types of continuity are given and examples are given to show that these are actually ...
Keith, Martha Allred   +1 more
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