Results 31 to 40 of about 81 (80)
APPROXIMATION ON THE SPHERE USING RADIAL BASIS FUNCTIONS PLUS POLYNOMIALS
, 2008 . In this paper we analyse a hybrid approximation of functions on the sphere S 2 ⊂ R 3 by radial basis functions combined with polynomials, with the radial basis functions assumed to be generated by a (strictly) positive definite kernel.
Alvise Sommariva +3 more
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Demonstratio MathematicaIn this work, we introduce a new operator M n, constructed using a partial differential equation, that is structurally similar to that of the exponential-type operator G n associated with p(x) = x 4/3, x ∈ (0, ∞). However, unlike G n, the operator M n is
Gupta Vijay +2 more
doaj +1 more source
Approximation by Radial Basis Functions with Finitely Many Centers
, 1996 : Interpolation by translates of "radial" basis functions \Phi is optimal in the sense that it minimizes the pointwise error functional among all comparable quasi--interpolants on a certain "native" space of functions F \Phi .
Schaback, Robert, Robert Schaback
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On the degree of approximation by new Durrmeyer type operators 1
, 2010 In this paper, we define a new kind of positive linear operators and study basic properties as well as Voronovskaya type results. In the last section of this paper we establish the error estimation for simultaneous approximation in terms of higher order ...
Suresh P Singh, Naokant Deo
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Joint discrete universality for periodic zeta-functions
, 2019 In the paper, joint universality theorems for periodic zeta functions with multiplicative coefficients and periodic Hurwitz zeta-functions are proved. The main theorem of [11] is extended, and two new joint universality theorems on the approximation of a
Laurinčikas, Antanas
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Multiresolution analysis by infinitely differentiable compactly supported functions
, 1995 [he paper is concerned with the introduction and study of multiresolution analysis based on thie uip function, which is an infinitely differentiable function supported on [0,2]. Such analysis i,. necessarily, nonstationary.
N. Dyn, A. Ron
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Richards's curve induced Banach space valued multivariate neural network approximation. [PDF]
Arab J Math, 2023 Anastassiou GA, Karateke S.
europepmc +1 more source
, 1995 A characterization of multivariate dual wavelet tight frames for any general dilation matrix is presented in this paper. As an application, Lawton's result on wavelet tight frames in L (IR) is generalized to the n-dimensional case.
Bin Han
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Richards's curve induced Banach space valued ordinary and fractional neural network approximation. [PDF]
Rev R Acad Cienc Exactas Fis Nat A Mat, 2023 Anastassiou GA, Karateke S.
europepmc +1 more source
Interpolating Refinable Functions And Wavelets For General Scaling Matrices
, 1997 This paper introduces a general procedure for constructing interpolating re- nable functions for arbitrary dilation matrices. The key ideas are based on the construction presented in [24].
Stephan Dahlke +3 more
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