[DM2] W. Dahmen and C. A. Micchelli, On the local linear independence of translates of a box spline, Studia Math., 82 (1985), 243–263.
[DM3] —, Multivariate E-splines, Advances in Math., 76 (1989), 33–93.
[DR1] N. Dyn and A. Ron, Local approximation by certain spaces of multivariate exponential-polynomials, approximation order of exponential box splines and related interpolation problems, Trans. Amer. Math. Soc., 319 (1990), 381–404.
[DR2] —, On multivariate polynomial interpolation, in Algorithms for Approximation II, J. C. Mason, M. G. Cox (eds.), Chapman and Hall, London 1990, 177–184.
[G] J. A. Gregory, Interpolation to boundary data on the simplex, CAGD, 2 (1985), 43–52.
[J] R. Q. Jia, A dual basis for the integer translates of an exponential box spline, preprint 1988.
[R] A. Ron, Relations between the support of a compactly supported function and the exponential-polynomials spanned by its integer translates, Constructive Approx., 5 (1989), 297–308.
Received April 17, 1989. The first author was supported by the National Science Foundation under Grant No. DMS-8701275 and by the United States Army under Contract No. DAAL03-87-K-0030.
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