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1IntroductionTheproblems0finvarianttorusbifurcationforplanarHamilt0niansy-stemshavebeenextensivelystudiedandmanyresultshavebeen0btained(see[l-4]andthereferencestherein).However,theresultsconcernedwiththeinvarianttorusbifurcati0n0fhigherdimensi0nalsystemsarestillrelativelyfew.Recentlyann-dimensi0nalsystem,whichhasanormallyhyperbolicin-variantmanif0ldconsistingentirely0fclosedorbits,wasconsidered,andtheexistenceandthenormalhyperbolicityoftheinvariantt0rusweregivenin[5].Paper[6]extendedthesystem… 相似文献
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