A solution to the Baer splitting problem

Details A solution to the Baer splitting problem A solution to the Baer splitting problem

2006-02-13

arxiv.org/abs/math/0602272v1

Mathematics

Commutative Algebra

Scientific paper

Let R be a commutative domain. We prove that an R-module B is projective if
and only if Ext^1(B,T)=0 for any torsion module T. This answers in the
affirmative a question raised by Kaplansky in 1962.

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