球、球面和其他具有不同局部几何的流形上的等谱度量对
Isospectral pairs of metrics on balls, spheres, and other manifolds with different local geometries
摘要：
第一个等谱度量对被构造在球和球体上。这个长期存在的问题，关于这种对的存在，已经解决了一个新的方法称为“反换位子技术。在这类对的广泛范围中，最引人注目的例子是在（4k-1）维球体上，其中k > 2。其中一个度量是齐次的（因为它是2点齐性空间的测地球面上的度量），而另一个度量是局部非齐次的。这些例子证明了一个令人惊讶的事实，即没有关于等距的信息被编码在作用于函数的拉普拉斯算子的谱中。换句话说，在“可听几何与不可听几何”的争论中，“等距群，甚至局部齐性，都输给了不可听几何”。"
英文摘要：
The first isospectral pairs of metrics are constructed on balls and spheres. This long standing problem, concerning the existence of such pairs, has been solved by a new method called "Anticommutator Technique." Among the wide range of such pairs, the most striking examples are provided on (4k-1)-dimensional spheres, where k > 2. One of these metrics is homogeneous (since it is the metric on the geodesic sphere of a 2-point homogeneous space), while the other is locally inhomogeneous. These examples demonstrate the surprising fact that no information about the isometries is encoded in the spectrum of Laplacian acting on functions. In other words, "The group of isometries, even the local homogeneity property, is lost to the "Non-Audible" in the debate of "Audible versus Non-Audible Geometry"."
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
