Difference between revisions of "Whitehead module"
From Encyclopedia of Mathematics
(Start article: Whitehead module) |
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Latest revision as of 06:57, 9 October 2016
A module $M$ over an associative ring with identity $R$ such that the $\mathrm{Ext}$ functor $$ \mathrm{Ext}_R^1(M,R) = 0 \ . $$
How to Cite This Entry:
Whitehead module. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Whitehead_module&oldid=39377
Whitehead module. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Whitehead_module&oldid=39377