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Characterising certain compactifications of frames with special attention to Freudenthal
Algebra universalis ( IF 0.6 ) Pub Date : 2021-01-19 , DOI: 10.1007/s00012-021-00708-7
Simo Mthethwa

We introduce the definition of h-perfect elements relative to a compactification \(h:M\longrightarrow L\) and show that if a collection of all such elements is a basis, then the remainder of a frame in this compactification is zero-dimensional. This concept yields what we call a full \(\pi \)-compact basis for rim-compact frames. Compactifications arising from full \(\pi \)-compact bases are investigated. We show that the Freudenthal compactification is the smallest perfect compactification and that its basis is full. Also, we exhibit the one-to-one correspondence between the set of all full \(\pi \)-compact bases and the set of all \(\pi \)-compactifications of a rim-compact frame L.



中文翻译:

特别注意弗洛伊登塔尔对框架的某些压实度进行表征

我们介绍的定义ħ -完美相对于紧凑化元素\(H:M \ longrightarrow大号\)并显示,如果所有这样的元素的集合是一个基础,然后在此紧凑化的帧的剩余部分是零维。这个概念产生了我们称为边缘紧凑框架的完整 \(\ pi \)紧凑基础。研究了完全\(\ pi \)-紧凑基的紧实度。我们表明,弗洛伊登塔尔的压实是最小的完美压实,并且它的基础是充分的。此外,我们展示了所有完全\(\ pi \)-紧缩底的集合与所有\(\ pi \)的集合之间的一一对应关系边沿紧凑框架L的压缩。

更新日期:2021-01-19
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