外部周期的刺激相关论文
    1 Introduction Inthepastdecadeorso ,theexistenceofglobalat tractorsandtheestimatesoftheirHausdorffandfractaldimensionshavebeeninvestigatedfornumerousdissipa tivenonlinearpartialdifferentialequationswhichareau tonomous[1~ 4 ].Thenon autonomousinfinite dyna......