| Title: | On minimal ideals in the ring of real-valued continuous functions on a frame (English) | 
| Author: | Karimi Feizabadi, Abolghasem | 
| Author: | Estaji, Ali Akbar | 
| Author: | Abedi, Mostafa | 
| Language: | English | 
| Journal: | Archivum Mathematicum | 
| ISSN: | 0044-8753 (print) | 
| ISSN: | 1212-5059 (online) | 
| Volume: | 54 | 
| Issue: | 1 | 
| Year: | 2018 | 
| Pages: | 1-13 | 
| Summary lang: | English | 
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| Category: | math | 
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| Summary: | Let $\mathcal{R}L$ be the ring of real-valued continuous functions on a frame $L$. The aim of this paper is to study the relation between minimality of ideals $I$ of $\mathcal{R}L$ and the set of all zero sets in $L$ determined by elements of $I$. To do this, the concepts of coz-disjointness, coz-spatiality and coz-density are introduced. In the case of a coz-dense frame $L$, it is proved that the $f$-ring $\mathcal{R}L$ is isomorphic to the $f$-ring $ C(\Sigma L)$ of all real continuous functions on the topological space $\Sigma L$. Finally, a one-one correspondence is presented between the set of isolated points of $\Sigma L$ and the set of atoms of $L$. (English) | 
| Keyword: | ring of real-valued continuous functions on a frame | 
| Keyword: | coz-disjoint | 
| Keyword: | coz-dense and coz-spatial frames | 
| Keyword: | zero sets in pointfree topology | 
| Keyword: | $z$-ideal | 
| Keyword: | strongly $z$-ideal | 
| MSC: | 06D22 | 
| MSC: | 13A15 | 
| MSC: | 54C30 | 
| idZBL: | Zbl 06861554 | 
| idMR: | MR3783288 | 
| DOI: | 10.5817/AM2018-1-1 | 
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| Date available: | 2018-03-12T13:41:49Z | 
| Last updated: | 2020-01-05 | 
| Stable URL: | http://hdl.handle.net/10338.dmlcz/147104 | 
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