On geodesic exponential maps of the Virasoro group

On geodesic exponential maps of the Virasoro group
复制标题

DOI:
10.1007/s10455-006-9042-8
复制
发表时间:
2007-02
影响因子:
0.7
通讯作者:
A. Constantin;A. Constantin;T. Kappeler;B. Kolev;P. Topalov
A. Constantin;A. Constantin;T. Kappeler;B. Kolev;P. Topalov
中科院分区:
数学4区
文献类型:
--
作者:
A. Constantin;A. Constantin;T. Kappeler;B. Kolev;P. Topalov

文献摘要

被引文献

相似文献

研究Virasoro群Vir上Sobolev型右不变(弱)黎曼度量μ(k)(k≥ 0)对应的测地指数映射,证明了当fork≥ 2,而不是fork = 0,1时,它们定义了单位元∈Vir的光滑Fréchet图.特别地,Korteweg-de弗里斯(KdV)方程(k= 0)所对应的测地指数映射在原点附近不是一个局部自同构.
We study the geodesic exponential maps corresponding to Sobolev type right-invariant (weak) Riemannian metrics μ(k)(k≥ 0) on the Virasoro groupVirand show that fork≥ 2, butnotfork= 0,1, each of them defines a smooth Fréchet chart of the unital elemente∈Vir. In particular, the geodesic exponential map corresponding to the Korteweg–de Vries (KdV) equation (k= 0) isnota local diffeomorphism near the origin.