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arXiv 2005.01978math.FA
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作为函数格的向量空间上的自由向量格

Free vector lattices over vector spaces as function lattices

Marcel de Jeu

摘要:

证明了实向量空间$V$上的自由向量格可以正则地实现为在其对偶空间的任何线性子空间上的实值正齐次函数的向量格,该对偶空间分离$V$的点。这是用来给直观的已知事实,即自由的巴拿赫格在巴拿赫空间$E$可以实现为一个巴拿赫格的正齐次函数$E^\ast$。它也适用于改进的著名结果,自由向量格在非空集可以实现为向量格的实值函数。对于无限集合,这种实现的基础空间可以选择为比通常的空间小小于。

英文摘要:

We show that a free vector lattice over a real vector space $V$ can be realised canonically as a vector lattice of real-valued positively homogeneous functions on any linear subspace of its dual space that separates the points of $V$. This is used to give intuition for the known fact that the free Banach lattice over a Banach space $E$ can be realised as a Banach lattice of positively homogeneous functions on $E^\ast$. It is also applied to improve the well-known result that free vector lattices over non-empty sets can be realised as vector lattices of real-valued functions. For infinite sets, the underlying spaces for such realisations can be chosen to be smaller than the usual ones.

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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