广义主弱平坦系及办单系.pdf

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8、‰ÑŒüS-X˜•x,¿?ØArtinXÚNoetherX5ŸÚ(.'…c:T-Ìf²",^‡(E-PWP),T-SÌf²",T-Ìf²"SS-X,üX,ŒüS-X,ArtinS-X,NoetherS-X.iiiAbstractInthisdissertation,wemainlystudysomepropertiesofT-principallyweakly atnessandsemisimpleS-Act.LetSbemonoid,wecalledrightS-actAisprincipallyweakly atifth

9、efunctorApreservesallembeddingsofprincipalleftidealsintosS.Thepropertiesofprincipallyweakly atnessofS-ActisinvestigatedbyVa