PURE-INJECTIVE MODULES NEED NOT BE RD-INJECTIVE

Published in: Quaestiones Mathematicae
Volume 9 , issue 1-4 , 1986 , pages: 363–364

DOI: 10.1080/16073606.1986.9632123

Author(s): C.G. Naudé , South Africa , G. Naudé , South Africa , L.M. Pretorius Department of Mathematics, South Africa

It is shown that if R is a GCD domain which is not Bézout, then there exist pure-injective R-modules which are not RD-injective.

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