21,109 research outputs found

    Purely non-atomic weak L^p spaces

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    Let \msp be a purely non-atomic measure space, and let 1<p<1 < p < \infty. If \weakLp\msp is isomorphic, as a Banach space, to \weakLp\mspp for some purely atomic measure space \mspp, then there is a measurable partition Ω=Ω1Ω2\Omega = \Omega_1\cup\Omega_2 such that (Ω1,ΣΩ1,μΣΩ1)(\Omega_1,\Sigma\cap\Omega_1,\mu_{|\Sigma\cap\Omega_1}) is countably generated and σ\sigma-finite, and that μ(σ)=0\mu(\sigma) = 0 or \infty for every measurable σΩ2\sigma \subseteq \Omega_2. In particular, \weakLp\msp is isomorphic to p,\ell^{p,\infty}

    On the complemented subspaces of the Schreier spaces

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    It is shown that the Schreier space X admits a set of continuum cardinality whose elements are mutually incomparable complemented subspaces spanned by subsequences of the natural Schauder basis of X.Comment: 26 pages, AMS-LaTe

    In situ photogalvanic acceleration of optofluidic kinetics: a new paradigm for advanced photocatalytic technologies

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    A multiscale-designed optofluidic reactor is demonstrated in this work, featuring an overall reaction rate constant of 1.32 s¯¹ for photocatalytic decolourization of methylene blue, which is an order of magnitude higher as compared to literature records. A novel performance-enhancement mechanism of microscale in situ photogalvanic acceleration was found to be the main reason for the superior optofluidic performance in the photocatalytic degradation of dyes as a model reaction
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