论文标题
伯杰和图雅夫证明了赫尔曼的积极熵的猜想
Berger And Turaev's Proof of Herman's Conjecture of Positive Entropy
论文作者
论文摘要
我们介绍了伯格和图雅耶的证明，表明了赫尔曼的积极熵猜想。在二维椎间盘平滑符号差异的集合中的每个邻域中，存在具有阳性度量熵的差异性。
We present the proof of Berger and Turaev of Herman's positive entropy conjecture. In every neighbourhood of identity in the set of smooth symplectic diffeomorphisms of the 2-dimensional disc, there exists a diffeomorphism with positive metric entropy.
