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Weighted Hardy spaces associated with elliptic operators. Part III: Characterizations of $H_L^{p}(w)$ and the weighted Hardy space associated with the Riesz transform (1702.04648v2)

Published 15 Feb 2017 in math.AP

Abstract: We consider Muckenhoupt weights $w$, and define weighted Hardy spaces $Hp_{\mathcal{T}}(w)$, where $\mathcal{T}$ denotes a conical square function or a non-tangential maximal function defined via the heat or the Poisson semigroup generated by a second order divergence form elliptic operator $L$. In the range $0<p< 1$, we give a molecular characterization of these spaces. Additionally, in the range $p\in \mathcal{W}w(p-(L),p_+(L))$ we see that these spaces are isomorphic to the $Lp(w)$ spaces. We also consider the Riesz transform $\nabla L{-\frac{1}{2}}$, associated with $L$, and show that the Hardy spaces $Hp_{\nabla L{-1/2},q}(w)$ and $Hp_{\mathcal{S}_{\mathrm{H}},q}(w)$ are isomorphic, in some range of $p'$s, and $q\in \mathcal{W}w(q-(L),q_+(L))$.

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