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Communications in Algebra Volume 26, 1998 - Issue 3
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Original Articles

Rings characterized by (pre)envelopes and (pre)covers of their modulesFootnote∗

Juan Rada Departamento de Mátematicas, Faculta de Ciencias, Universidad de los Andes, Mérida, 5101, Venezuela E-mail: [email protected]
&
Manuel Saorin Departamento de Mátematicas, Universidad de Murcia, Aptdo. 4021, Espinardo, Murcia, 30100, Spain E-mail: [email protected]
Pages 899-912 | Received 01 Mar 1997, Published online: 27 Jun 2007
 
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∗The second author has been partially supported by the D.G.I.C.Y.T. of Spain (PE93-0515-C02-02) and the Oomunidad Autonoma de Murcia (PIB95-61).

Notes

∗The second author has been partially supported by the D.G.I.C.Y.T. of Spain (PE93-0515-C02-02) and the Oomunidad Autonoma de Murcia (PIB95-61).

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