Buscar
Mostrando ítems 1-10 de 2214
Compensated convexity methods for approximations and interpolations of sampled functions in euclidean spaces: Theoretical foundations
(Society for Industrial and Applied Mathematics, 2016-12)
We introduce Lipschitz continuous and C1;1 geometric approximation and interpolation methods for sampled bounded uniformly continuous functions over compact sets and over complements of bounded open sets in Rn by using ...
Inequalities in Lp−1 for the extended Lp best approximation operator
(Elsevier Inc, 2012-09)
The best polynomial approximation operator was recently extended by one of the authors from Lp to Lp−1. In this paper, we study weak and strong inequalities for maximal operators related with the extended best polynomial ...
Error function approximations of interest in electrochemistry.
(Editora Unesp, 1996-01-01)
The error function is present in several equations describing eletrode processes. But, only approximations of this function are used. In this work, these and other approximations are studied and evaluated according to precision.
Approximate controllability of second-order distributed implicit functional systems
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
In this paper we study the approximate controllability of control systems with states and controls in Hilbert spaces, and described by a second-order semilinear abstract functional differential equation with infinite delay. ...
Alternate approximation of concave cost functions for process design and supply chain optimization problems
(Elsevier, 2014-01)
This short note presents an alternate approximation of concave cost functions used to reflect economies of scale in process design and supply chain optimization problems. To approximate the original concave function, we ...
A Closed-Form Approximation for the CDF of the Sum of Independent Random Variables
(Institute of Electrical and Electronics Engineers, 2017-01)
In this letter, we use the Berry-Esseen theorem and the method of tilted distributions to derive a simple tight closed-form approximation for the tail probabilities of a sum of independent but not necessarily identically ...
Approximating a class of combinatorial problems with rational objective function
(SPRINGER, 2010)
In the late seventies, Megiddo proposed a way to use an algorithm for the problem of minimizing a linear function a(0) + a(1)x(1) + ... + a(n)x(n) subject to certain constraints to solve the problem of minimizing a rational ...
A characterization of the extended best φ-approximation operator
(Taylor & Francis, 2011-05)
Given an non necessarily linear operator T defined from an Orlicz space L φ′(Ω, , μ) into itself, where φ′ denote the derivative of a strictly convex function φ, we give necessary and sufficient conditions on T assuring ...
The approximation property for spaces of holomorphic functions on infinite-dimensional spaces I
(Academic Press Inc Elsevier ScienceSan DiegoEUA, 2004)
Weakly continuous holomorphic functions on pseudoconvex domains in Banach spaces
(SpringerNew YorkEUA, 2010)