Local Formula for the Index of a Fourier Integral Operator
Local Formula for the Index of a Fourier Integral Operator
复制标题
傅里叶积分算子指数的局部公式
DOI:
--
复制
发表时间:
2000
期刊:
影响因子:
--
通讯作者:
B. Tsygan
中科院分区:
文献类型:
--
作者:
E. Leichtnam;R. Nest;B. Tsygan
We show that the index of an elliptic Fourier integral operator associated to a contact diffeomorphism $\phi$ of cosphere bundles of two Riemannian manifolds X and Y is given by $\int_{B^*X}\hat{A}(T^*X)\exp{\theta} - \int_{B^*Y}\hat{A}(T^*Y)\exp{\theta}$. Here $B^*$ stands for the unit coball bundle and $\theta$ is a certain characteristic class depending on the principal symbol of the Fourier integral operator. In the special case when X=Y we obtain a different proof of the theorem of Epstein and Melrose.