On purity relative to an hereditary torsion theory.
The thesis is mainly concerned with properties of the concept "σ-purity" introduced by J. Lambek in "Torsion Theories, Additive Semantics and Rings of Quotients", (Springer-Verlag, 1971). In particular we are interested in modul es M for which every exact sequence of the form O→M...
| Main Author: | |
|---|---|
| Other Authors: | |
| Language: | en |
| Published: |
2012
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10413/5722 |