
doi: 10.1007/bf01889611
Given a multivariate compactly supported distribution \(\phi\), we derive here a necessary and sufficient condition for the global linear independence of its integer translates. This condition is based on the location of the zeros of \({\hat \phi}=the\) Fourier-Laplace transform of \(\phi\). The utility of the condition is demonstrated by several examples and applications, showing, in particular, that previous results on box splines and exponential box splines can be derived from this condition by a simple combinatorial argument.
Fourier-Laplace transform, Spline approximation, Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type, Multidimensional problems, box splines, multivariate compactly supported distribution
Fourier-Laplace transform, Spline approximation, Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type, Multidimensional problems, box splines, multivariate compactly supported distribution
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