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How To Make Ext Vanish |
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| Authors: | Eklof Paul C; Trlifaj Jan |
| Institution: | Mathematics Department UCI, Irvine, CA 92697-3875, USA; e-mail: peklof{at}math.uci.edu Katedra algebry MFF UK Sokolovská 83, 186 75 Prague 8, Czech Republic; e-mail: trlifaj{at}karlin.mff.cuni.cz |
| Abstract: | We describe a general construction of a module A from a givenmodule B such that Ext(B, A) = 0, and we apply it to answerseveral questions on splitters, cotorsion theories and saturatedrings. |
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