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On certain sequences of least squares approximants
Published online by Cambridge University Press: 17 April 2009
Abstract
A sequence of certain rational functions is determined where each member solves an ℓ2-minimisation problem on a “large” set of roots of unity. The sequence is compared with another sequence of L2-rational approximants. Our main result extends a result of Rivlin on Walsh type equiconvergence.
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- Copyright © Australian Mathematical Society 1988
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