Results 51 to 60 of about 21,657 (246)
Journal of Numerical Analysis and Approximation Theory, 2001 The Chebyshev approximation problem is usually described as to find the polynomial (or the element of an Haar subspace) which uniformly best approximates a given continuous function. Most of the theoretical results forming the basis of this theory have not been explored by members of the St Petersburg Mathematical School, founded by P. L.
openaire +4 more sources
Projeto de filtros digitais transicionais Cauer-Chebyshev inverso [PDF]
, 2006 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.O presente trabalho apresenta uma metodologia de projeto de filtros transicionais a partir de aproximações não ...
Fernandes, Ricardo Souza Monteiro
core
Factorization properties of chebyshev polynomials [PDF]
, 2005 Several factorization properties of Chebyshev are reported here. Studying the euclidean division of two Chebyshev, we observe that the remainder is either zero or (up to a sign) another Chebyshev polynomial.
Rayes, M.O., Wang, P.S., Trevisan, V.
core +1 more source
Advanced Energy Materials, EarlyView.Machine learning interatomic potentials bridge quantum accuracy and computational efficiency for materials discovery. Architectures from Gaussian process regression to equivariant graph neural networks, training strategies including active learning and foundation models, and applications in solid‐state electrolytes, batteries, electrocatalysts ...
In Kee Park +19 more
wiley +1 more source
THE CHEBYSHEV PROJECTIONS ON POLYHEDRON
Journal of Numerical and Applied Mathematics, 2021 The problem of minimizing weighted Chebyshev norm on a convex polyhedron defined as the set of solutions to a system of linear inequalities may have a non-unique solution. Moreover, among the solutions to this problem, there may be clearly not suitable points of the polyhedron for the role of the closest points to the zero vector.
openaire +2 more sources
Convection in porous media and Legendre, Chebyshev Galerkin methods [PDF]
, 2005 The subject of thermal convection in fluid and porous media is investigated, coupled with the development of efficient spectral finite element methods to improve on the more commonly used techniques for these types of problems.
Hill, Antony Α. +2 more
core
Data‐Driven High‐Throughput Volume Fraction Estimation From X‐Ray Diffraction Patterns
Advanced Intelligent Discovery, EarlyView.Long exposure times and the need for manual evaluation limit the use of X‐ray diffraction in high‐throughput applications. This study presents a data‐driven approach addressing both issues. HiVE (a method for High‐throughput Volume fraction Estimation) performs composition estimation for high‐noise XRD patterns produced using polychromatic emission ...
Hawo H. Höfer +6 more
wiley +1 more source
Chebyshev gradient polynomials for high resolution surface and wavefront reconstruction [PDF]
, 2018 A new data processing method based on orthonormal rectangular gradient polynomials is introduced in this work. This methodology is capable of effectively reconstructing surfaces or wavefronts with data obtained from deflectometry systems, especially ...
Oh, Chang Jin +5 more
core +1 more source
Mock-Chebyshev Polinom İnterpolasyonu [PDF]
, 2021 Polinom interpolasyonunda noktaların geometrik yeri önemli bir rol oynar. Bunu göstermek için, iyi bilinen Runge fenomenini örnek vermek yeterli olacaktır.
IBRAHIMOGLU, Bayram Ali
core +1 more source
Prediction of Dynamic Stability Using Mapped Chebyshev Pseudospectral Method
International Journal of Aerospace Engineering, 2018 A mapped Chebyshev pseudospectral method is extended to solve three-dimensional unsteady flow problems. As the classical Chebyshev spectral approach can lead to numerical instabilities due to ill conditioning of the spectral matrix, the Chebyshev points ...
Jae-Young Choi +3 more
doaj +1 more source