Results 41 to 50 of about 76 (75)

Scattered Node Compact Finite Difference-Type Formulas Generated from Radial Basis Functions

open access: yes, 2008
In standard equispaced finite difference (FD) formulas, symmetries can make the order of accuracy relatively high compared to the number of nodes in the FD stencil. With scattered nodes, such symmetries are no longer available.
Grady B. Wright A, Bengt Fornberg B
core  

On Dual Wavelet Tight Frames

open access: yes, 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
core  

Approximation From Shift-Invariant Subspaces of ...

open access: yes, 1991
: A complete characterization is given of closed shift-invariant subspaces of L 2 (IR d ) which provide a specified approximation order. When such a space is principal (i.e., generated by a single function), then this characterization is in terms of ...
Amos Ron, Ronald A. Devore, Carl de Boor
core  

On Existence and Weak Stability of Matrix Refinable Functions

open access: yes, 1996
: We consider the existence of distributional (or L 2 ) solutions of the matrix refinement equation b \Phi = P(\Delta=2) b \Phi(\Delta=2); where P is an r \Theta r matrix with trigonometric polynomial entries.
Qingtang Jiang, Zuowei Shen
core  

Construction Techniques for Highly Accurate Quasi-Interpolation Operators

open access: yes, 1996
: Under mild additional assumptions this paper constructs quasi-interpolants in the form f h (x) = +1 X j=\Gamma1 f(hj)' h i x h \Gamma j j ; x 2 IR; h ?
Zongmin Wu, Robert Schaback, R. Schaback
core  

Approximation properties of q-Baskakov operators

open access: yesOpen Mathematics, 2010
Finta Zoltán, Gupta Vijay
doaj   +1 more source

Home - About - Disclaimer - Privacy