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HOW TO MAKE Ext VANISH

Published online by Cambridge University Press:  18 April 2001

PAUL C. EKLOF
Affiliation:
Mathematics Department, UCI, Irvine, CA 92697-3875, USA; e-mail: peklof@math.uci.edu
JAN TRLIFAJ
Affiliation:
Katedra algebry MFF UK, Sokolovská 83, 186 75 Prague 8, Czech Republic; e-mail: trlifaj@karlin.mff.cuni.cz
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Abstract

We describe a general construction of a module A from a given module B such that Ext(B, A) = 0, and we apply it to answer several questions on splitters, cotorsion theories and saturated rings.

Type
NOTES AND PAPERS
Copyright
© The London Mathematical Society 2001

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