16th Seminar on Algebra

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1、IranianMathematicalSociety16thSeminaronAlgebra17-19November2004InstituteforAdvancedStudiesinBasicSciences(IASBS)Zanjan-IranInstituteforAdvancedStudiesinBasicScience16thSeminaronAlgebra17¡19November2004ScientificCommitteeM.Aryan-Nezhad(Univ.ofZanjan)aria

2、n@mail.znu.ac.irRepresentativeofIMSA.Ashra¯(Univ.ofKashan)ashra¯@kashanu.ac.irRepresentativeofIMSM.R.Darafsheh(Univ.ofTehran)daraf@khayam.ut.ac.irM.M.Ebrahimi(Univ.ofShahidBeheshti)m-ebrahimi@sbu.ac.irA.Iranmanesh(Univ.ofTarbiatModares)iranmana@modares.

3、ac.irRepresentativeofIMSA.Jamali(Univ.forTeacherEducation)jamali@saba.tmu.ac.irH.Mousavi(IASBS)hmousavi@iasbs.ac.irA.RahnamaiBarghi(IASBS)rahnama@iasbs.ac.irS.Yassemi(Unive.ofTehran)yassemi@ipm.ac.irR.ZaareNahandi(Univ.ofTehran)rahimzn@khayam.ut.ac.irR.

4、ZaareNahandi(IASBS)rashidzn@iasbs.ac.irH.Zakeri(Univ.forTeacherEducation)hosseinzakeri@yahoo.comOrganizingCommitteeHamidMousaviPrincipalOrganizerhmousavi@iasbs.ac.irAmirRahnamaiBarghiExecutiveOrganizerrahnama@iasbs.ac.irRashidZaareNahandirashidzn@iasbs.

5、ac.irInstituteforAdvancedStudiesinBasicScience16thSeminaronAlgebra17¡19November2004ContentsPlenarySpeakersS.AkbariOnCommutingGraphofaSimpleRing.............................................7MehriAkhavan-MalayeriCommutatorLengthofCertainClassesofSolvableG

6、roups...........................9JavadAsadollahiCohomologyofModulesof¯niteGorensteininjectivedimension.....................15HoushangBehraveshTheSchurindexofanirreduciblecharacterofa2-group............................39MohammadT.DibaeiAstudyofCousincomp

7、lexesthroughthedualizingcomplexes......................44M.Mahdavi-HezavehiOnGeneratingSubgroupsofGL1(D)...............................................54A.MohammadiHassanabadi3-rewritablegroups............................................................

8、......58ContributedLecturesA.AbdollahiGroupswithamaximalirredundant6-cover........................................68A.AhmadiOn¾-ArmendarizRings............................................................743R.AmeriCongruencesOfHyp