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On an equivalent class of norms for BMO
Published online by Cambridge University Press: 09 April 2009
Abstract
The BMO norm of f is equivalent to where Pt is the Poisson kernel. In this note, we show that Pt can be replaced by a nonnegative radial function h, which is positive in a neighbourhood of 0, with and , where h is the least decreasing radial majorant of h.
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- Research Article
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- Copyright © Australian Mathematical Society 1989
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