DEGREE　ONE　MAPS　OF　THE　CIRCLE　WITH　NON－TRIVIAL　AND　NON－PERSISTENT　ROTATION　SETS  

作　　者：F. H. Ghane & B. Honary(Ferdowsi University of Mashhad, P. O. Box 1159-91775, Mashhad, IRAN) 

出　　处：《Annals of Differential Equations》1995年第4期389-391,共3页微分方程年刊（英文版）

摘　　要：We present some conditions such that under these conditions an endomorphism of the circle has nontrivial rotation set and this rotation set changes under small perturbations of the endomorphism. Therefore, we have a cascade of hompoclinic tangencies.We present some conditions such that under these conditions an endomorphism of the circle has nontrivial rotation set and this rotation set changes under small perturbations of the endomorphism. Therefore, we have a cascade of hompoclinic tangencies.

关 键 词：SETS ROTATION PERSISTENT THE NON WITH CIRCLE AND MAPS 

分 类 号：O175[理学—数学]