Results 41 to 50 of about 18,163 (201)

Companion to the Ostrowski–Grüss-Type Inequality of the Chebyshev Functional with an Application

open access: yesMathematics, 2022
Recently, there have been many proven results of the Ostrowski–Grüss-type inequality regarding the error bounds for the Chebyshev functional when the functions or their derivatives belong to Lp spaces.
Sanja Kovač, Ana Vukelić
doaj   +1 more source

Bivariate Lagrange interpolation at the node points of Lissajous curves - the degenerate case

open access: yes, 2016
In this article, we study bivariate polynomial interpolation on the node points of degenerate Lissajous figures. These node points form Chebyshev lattices of rank $1$ and are generalizations of the well-known Padua points.
Erb, Wolfgang
core   +1 more source

New Chebyshev type inequalities for sequences of real numbers

open access: yesJournal of Numerical Analysis and Approximation Theory, 2004
Some new inequalities of Chebyshev type for sequences of real numbers are pointed out.
S. S. Dragomir
doaj   +2 more sources

Hermite–Hadamard-Type Inequalities and Two-Point Quadrature Formula

open access: yesMathematics, 2022
As convexity plays an important role in many aspects of mathematical programming, e.g., for obtaining sufficient optimality conditions and in duality theorems, and one of the most important inequalities for convex functions is the Hermite–Hadamard ...
Josipa Barić
doaj   +1 more source

Miners' Reward Elasticity and Stability of Competing Proof‐of‐Work Cryptocurrencies

open access: yesInternational Economic Review, EarlyView.
ABSTRACT Proof‐of‐Work cryptocurrencies employ miners to sustain the system through algorithmic reward adjustments. We develop a stochastic model of the multicurrency mining and identify conditions for stable transaction speeds. Bitcoin's algorithm requires hash supply elasticity <$<$1 for stability, while ASERT remains stable for any elasticity and ...
Kohei Kawaguchi   +2 more
wiley   +1 more source

Polynomial approximation via compressed sensing of high-dimensional functions on lower sets

open access: yes, 2016
This work proposes and analyzes a compressed sensing approach to polynomial approximation of complex-valued functions in high dimensions. Of particular interest is the setting where the target function is smooth, characterized by a rapidly decaying ...
Chkifa, Abdellah   +3 more
core   +1 more source

Unconditional Variance Estimation Under Complex Surveys

open access: yesInternational Statistical Review, EarlyView.
Summary The unconditional framework treats the samples and the variables of interest as random variables. This is particularly suitable with analytic inference, when modelling survey data. We show that variance estimation does not involve finite population corrections and joint‐inclusion probabilities, even with large sampling fractions and under ...
Yves G. Berger
wiley   +1 more source

Exponential Stability for a Class of Stochastic Reaction-Diffusion Hopfield Neural Networks with Delays

open access: yesJournal of Applied Mathematics, 2012
This paper studies the asymptotic behavior for a class of delayed reaction-diffusion Hopfield neural networks driven by finite-dimensional Wiener processes. Some new sufficient conditions are established to guarantee the mean square exponential stability
Xiao Liang, Linshan Wang
doaj   +1 more source

Supplementing the numerical solution of singular/hypersingular integral equations/inequalities with parametric inequality constraints with applications to crack problems

open access: yesComputer Assisted Methods in Engineering and Science, 2017
Singular and hypersingular integral equations appear frequently in engineering problems. The approximate solution of these equations by using various numerical methods is well known.
Nikolaos I. Ioakimidis
doaj   +1 more source

Synchronization of reaction–diffusion Hopfield neural networks with s-delays through sliding mode control

open access: yesNonlinear Analysis, 2022
Synchronization of reaction–diffusion Hopfield neural networks with s-delays via sliding mode control (SMC) is investigated in this paper. To begin with, the system is studied in an abstract Hilbert space C([–r; 0];U) rather than usual Euclid space Rn ...
Xiao Liang   +4 more
doaj   +1 more source

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