| Title: | Rigid extensions of $\ell$-groups of continuous functions (English) | 
| Author: | Knox, Michelle L. | 
| Author: | McGovern, Warren Wm. | 
| Language: | English | 
| Journal: | Czechoslovak Mathematical Journal | 
| ISSN: | 0011-4642 (print) | 
| ISSN: | 1572-9141 (online) | 
| Volume: | 58 | 
| Issue: | 4 | 
| Year: | 2008 | 
| Pages: | 993-1014 | 
| Summary lang: | English | 
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| Category: | math | 
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| Summary: | Let $C(X,\mathbb Z )$, $C(X,\mathbb Q )$ and $C(X)$ denote the $\ell $-groups of integer-valued, rational-valued and real-valued continuous functions on a topological space $X$, respectively. Characterizations are given for the extensions $C(X,\mathbb Z )\leq C(X,\mathbb Q )\leq C(X)$ to be rigid, major, and dense. (English) | 
| Keyword: | rigid extension | 
| Keyword: | major extension | 
| Keyword: | archimedean extension | 
| Keyword: | dense extension | 
| MSC: | 06F20 | 
| MSC: | 54C40 | 
| MSC: | 54F65 | 
| idZBL: | Zbl 1174.06341 | 
| idMR: | MR2471161 | 
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| Date available: | 2010-07-21T08:07:43Z | 
| Last updated: | 2020-07-03 | 
| Stable URL: | http://hdl.handle.net/10338.dmlcz/140435 | 
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