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arXiv 1801.09059math.FA
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Bochner空间的对偶

Duality of Bochner spaces

Seppo I. Hiltunen

摘要:

对于正测度$μ$和适当的实或复拓扑向量空间$\varPi$,我们构造了广义Lebesgue-Bochner空间$L^p(μ,\varPi)$,使得对于$1<p<+\infty$和具有可分拓扑的Banachable $\varPi$,经典Bochner空间$L^p(μ,\varPi)$的强对偶成为$L^{p^*}(μ,\varPi_σ')\,$的正则表示.因此,我们不需要对$\varPi$的强对偶$\varPi_β'$的范数拓扑作可分性假设。对于$p=1$和适当限制的正测度$μ$,我们甚至得到了类似的结果,而目标空间$\varPi$的范数拓扑没有任何可分性。对于局部紧拓扑空间上的正Radon测度,这些结果基本上包含在R. E. Edwards的经典泛函分析。

英文摘要:

We construct the generalized Lebesgue--Bochner spaces $L^p(μ,\varPi)$ for positive measures $μ$ and for suitable real or complex topological vector spaces $\varPi$ so that for $1<p<+\infty$ and Banachable $\varPi$ with separable topology the strong dual of the classical Bochner space $L^p(μ,\varPi)$ becomes canonically represented by $L^{p^*}(μ,\varPi_σ')\,$. Hence we need no separability assumption of the norm topology of the strong dual $\varPi_β'$ of $\varPi$. For $p=1$ and for suitably restricted positive measures $μ$ we even get a similar result without any separability of the norm topology of the target space $\varPi$. For positive Radon measures on locally compact topological spaces these results are essentially contained on pages 588--606 in R. E. Edwards' classical Functional Analysis.

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