Multivariate polynomial approximation in the hypercube
A theorem is proved concerning approximation of analytic functions by multivariate polynomials in the s-dimensional hypercube. The geometric convergence rate is determined not by the usual notion of degree of a multivariate polynomial, but by the Euclidean degree, defined in terms of the 2-norm rath...
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| Format: | Journal article |
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American Mathematical Society
2017
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