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Hardy spaces of spaces of homogeneous type
Authors:Xuan Thinh Duong  Lixin Yan
Institution:Department of Mathematics, Macquarie University, New South Wales 2109, Australia ; Department of Mathematics, Macquarie University, New South Wales 2109, Australia -- and -- Department of Mathematics, Zhongshan University, Guangzhou, 10275, People's Republic of China
Abstract:Let $X$ be a space of homogeneous type, and $L$ be the generator of a semigroup with Gaussian kernel bounds on $L^2(X)$. We define the Hardy spaces $H^p_s(X)$ of $X$ for a range of $p$, by means of area integral function associated with the Poisson semigroup of $L$, which is proved to coincide with the usual atomic Hardy spaces $H^p_{at}(X)$ on spaces of homogeneous type.

Keywords:Spaces of homogeneous type  Hardy spaces  semigroup  Calder\'on-type reproducing formula  atomic decomposition
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