Results 1 to 10 of about 11,879 (128)

Best L1 approximation by weak chebyshev systems and the uniqueness of interpolating perfect splines

Journal of Approximation Theory, 1977
C. Micchelli
openaire   +3 more sources

Development and Research of Method in the Calculation of Transients in Electrical Circuits Based on Polynomials

Energies, 2022
Long electromagnetic transients occur in electrical systems because of switching and impulse actions As a result, the simulation time of such processes can be long, which is undesirable.
Sergii Tykhovod, Ihor Orlovskyi
doaj   +1 more source

Diffusive smoothing of 3D segmented medical data

Journal of Advanced Research, 2015
This paper proposes an accurate, computationally efficient, and spectrum-free formulation of the heat diffusion smoothing on 3D shapes, represented as triangle meshes.
Giuseppe Patané
doaj   +1 more source

The best quintic Chebyshev approximation of circular arcs of order ten

International Journal of Electrical and Computer Engineering (IJECE), 2019
Mathematically, circles are represented by trigonometric parametric equations and implicit equations. Both forms are not proper for computer applications and CAD systems.
A. Rababah
semanticscholar   +1 more source

Canonical Sets of Best L1-Approximation

Journal of Function Spaces and Applications, 2012
In mathematics, the term approximation usually means either interpolation on a point set or approximation with respect to a given distance. There is a concept, which joins the two approaches together, and this is the concept of characterization of the ...
Dimiter Dryanov, Petar Petrov
doaj   +1 more source

Calculation of reinforced concrete ceilings with normal cracks accounting the Chebyshev approximation

MATEC Web of Conferences, 2017
The article shows the influence of torsional rigidity of reinforced concrete elements on the spatial work of bridges, overlappings, building frames and other complex statically indeterminate systems.
Azizov Taljat, Melnyk Olexiy, Orlova Olga, Kalenchuk-Porkhanova Angelina, Vakal Larisa   +4 more
doaj   +1 more source

An efficient spectral algorithm for non-linear astrophysical Lane–Emden problem using pseudo-Chebyshev wavelets with error analysis

Franklin Open
Mother wavelets play a crucial role in wavelet analysis, leading to the development of several well-known families such as Haar, Morlet, Legendre, and Chebyshev wavelets.
Susheel Kumar, Satish Kumar, Sudhir Kumar Mishra, Shyam Lal   +3 more
doaj   +1 more source

Fourier series and Chebyshev polynomials applied to real-time water demand forecasting

, 2017
Relevance of water demand forecasting increases with complexity of water supply systems. Several methods for water demand forecasting have been proposed in literature, mostly based on time-series analysis and machine learning, the later needing more ...
B. Brentan, E. Luvizotto, J. Izquierdo, R. Pérez-García   +3 more
semanticscholar   +1 more source

ACCORDING TO THE CALCULATION OF REINFORCED CONCRETE CEILINGS TAKING INTO ACCOUNT THE CHANGE IN TORSIONAL STIFFNESS OF PREFABRICATED PLATES AGAINST THE FORMATION OF NORMAL CRACKS

, 2017
The article shows the influence of torsional rigidity of reinforced concrete elements on the spatial work of bridges, overlappings, building frames and other complex statically indeterminate systems.
T. Azizov, A. Melnyk, L. Vakal, Anzhelika Alekseevna Kalenchuk-Porkhanova, O. Orlova   +4 more
semanticscholar   +1 more source

Response Analysis of the Three-Degree-of-Freedom Vibroimpact System with an Uncertain Parameter. [PDF]

Entropy (Basel), 2023
Yang G, Deng Z, Du L, Lin Z.
europepmc   +1 more source