摘 要: | 1.IntroductionAsweknow,theresearchonthepersistenceofnonautonomousKolmogorovspeciessystems:isallalongaveryimportantsllbjectinthetheoryofmathematicalbiology.But,sofar,theworkonitisnotenough.ThemainresultsachievedarealmostconcernedwiththeLotka-Volterrasystems.Recently,inl]theauthorshavehadahelpfultryonthestudyofuniformpersistenceoftwodimensionalperiodicKolmogorovsystem:Unfortunately,thereisamistakeintheproofofthemainTheorem3.3in1].Themistakemakestheconclusionofthistheoremdoubtful.Asanimprov…
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