Results 81 to 90 of about 2,531 (180)

Numerical cubature using error-correcting codes

open access: yes, 2004
We present a construction for improving numerical cubature formulas with equal weights and a convolution structure, in particular equal-weight product formulas, using linear error-correcting codes.
Kuperberg, Greg
core  

Cubature formulae for spheres, simplices and balls

open access: yesJournal of Computational and Applied Mathematics, 2004
The paper is organized in 5 Sections. The first two contain respectively the motivation for the choice of the subject and some results concerning properties of polyharmonic functions. In Section 3, cubature on the sphere \(S(r)=\{x\in\mathbb{R}^n:| x| =r\}\) on the form \[ \int_{S(r)}\mu(\xi) \,d\sigma(\xi)\simeq \sum^{m-1}_{j=0} A_j(r)\int_{S(r_j)}\mu(
openaire   +1 more source

Discrete Fourier analysis, Cubature and Interpolation on a Hexagon and a Triangle

open access: yes, 2007
Several problems of trigonometric approximation on a hexagon and a triangle are studied using the discrete Fourier transform and orthogonal polynomials of two variables.
Li, Huiyuan, Sun, Jiachang, Xu, Yuan
core  

A Review of Recent Advances in Fractional-Order Sensing and Filtering Techniques. [PDF]

open access: yesSensors (Basel), 2021
Muresan CI   +4 more
europepmc   +1 more source

EXTREMAL PROBLEMS FOR CUBATURE FORMULAS

open access: yesProceedings of the Academy of Sciences of the Estonian SSR. Physics. Mathematics, 1978
Levin, M. I., Girsovic, Ju. M.
openaire   +3 more sources

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