LEADER 01300nam a2200337 i 4500 001 991001462909707536 005 20020507193920.0 008 981121s1975 de ||| | eng 020 $a3540071598 035 $ab10850909-39ule_inst 035 $aLE01312625$9ExL 040 $aDip.to Matematica$beng 082 0 $a512.55 084 $aAMS 18E 100 1 $aFossum, Robert M.$055673 245 10$aTrivial extensions of abelian categories :$bhomological algebra of trivial extensions of abelian categories with applications to ring theory /$cRobert M. Fossum, Phillip A. Griffith, Idun Reiten 260 $aBerlin ; New York :$bSpringer-Verlag,$c1975 300 $axi, 122 p. ;$c24 cm 490 0 $aLecture notes in mathematics,$x0075-8434 ;$v456 500 $aBibliography: p. [117]-122 650 0$aAbelian categories 650 0$aAssociative rings 650 0$aCommutative rings 700 1 $aGriffith, Phillip A. 700 1 $aReiten, Idun 907 $a.b10850909$b23-02-17$c28-06-02 912 $a991001462909707536 945 $aLE013 18E FOS11 (1975)$g1$i2013000104003$lle013$o-$pE0.00$q-$rl$s- $t0$u0$v0$w0$x0$y.i10962359$z28-06-02 996 $aTrivial extensions of Abelian categories$9262789 997 $aUNISALENTO 998 $ale013$b01-01-98$cm$da $e-$feng$gde $h0$i1