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Creators/Authors contains: "Vuorinen, Emil"

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  1. ; ; ; (, Mathematische Annalen)
    null (Ed.)
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  2. ; ; ; (, Journal of Functional Analysis)
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  3. ; ; ; (, International Mathematics Research Notices)
    Abstract We prove that the class of trilinear multiplier forms with singularity over a one-dimensional subspace, including the bilinear Hilbert transform, admits bounded $L^p$-extension to triples of intermediate $$\operatorname{UMD}$$ spaces. No other assumption, for instance of Rademacher maximal function type, is made on the triple of $$\operatorname{UMD}$$ spaces. Among the novelties in our analysis is an extension of the phase-space projection technique to the $$\textrm{UMD}$$-valued setting. This is then employed to obtain appropriate single-tree estimates by appealing to the $$\textrm{UMD}$$-valued bound for bilinear Calderón–Zygmund operators recently obtained by the same authors. 
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