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arXiv 2004.14250math.FA
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Lipschitz自由空间中的紧约化

Compact reduction in Lipschitz free spaces

Ramón J. Aliaga, Camille Noûs, Colin Petitjean, Antonín Procházka

摘要:

证明了Lipschitz自由空间的弱预紧集所满足的一个一般原理。利用这一原理,一般度量空间上的Lipschitz自由空间中的某些无穷维现象可以简化为它们的紧子集上的自由空间中的相同现象。作为简单的后果,我们得到几个新的和一些已知的结果。主要的新成果是:$\mathcal F(X)$对每个超自反巴拿赫空间$X$是弱序列完备的,而$\mathcal F(M)$对每个离散完全度量空间$M$具有Schur性质和逼近性质.

英文摘要:

We prove a general principle satisfied by weakly precompact sets of Lipschitz-free spaces. By this principle, certain infinite dimensional phenomena in Lipschitz-free spaces over general metric spaces may be reduced to the same phenomena in free spaces over their compact subsets. As easy consequences we derive several new and some known results. The main new results are: $\mathcal F(X)$ is weakly sequentially complete for every superreflexive Banach space $X$, and $\mathcal F(M)$ has the Schur property and the approximation property for every scattered complete metric space $M$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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