【环与模中的扭论方法张顺华】.pdf
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pntetveCover ofM.then thefollowniy Condrbons aveemvalend(1>MisTSemiperfect(2> pi TSemperfect(3> pi Comple meut Theorem 2(9.) is a herelitarytonsion theory,Gis the Correrpondiy Gabniel Topology,ther Gonohtionsare guvalont.
Hhen the followiy Cen ohtinns are emvalent(2>The Set af Tfat meeluesCloree mcler<3>The Set ofT fat moduesConsistsafa(hereelitarg)tovitonthamv Class.o<><5>For everm in G,amel evevy element a @,+here ehsts a elemen aan Suththat a= ca.theneNerg left ieleu @f Rn Gisiclempotent.