Abstract
Let R be a subring of the rational numbers ℚ. We recall from [3] that an R-module G is a splitter if Ext1R(G,G) = 0. In this note we correct the statement of Main Theorem 1.5 in [3] and discuss the existence of non-free splitters of cardinality ℵ1under the negation of the special continuum hypothesis CH.
| Original language | English |
|---|---|
| Pages (from-to) | 155-158 |
| Number of pages | 4 |
| Journal | Colloquium Mathematicum |
| Volume | 88 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2001 |
Bibliographical note
Publisher Copyright:© 2001, Instytut Matematyczny. All rights reserved.
Keywords
- Criteria for freeness of modules
- Self-splitting modules
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Almost free splitters
Göbel, R. & Shelah, S., 1999, In: Colloquium Mathematicum. 81, 2, p. 193-221 29 p.Research output: Contribution to journal › Article › peer-review
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