Timeline for Explicit eigenvalues of the Laplacian
Current License: CC BY-SA 3.0
4 events
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| Apr 20, 2020 at 13:56 | comment | added | Neal | By the way, the first example of an isospectral non-isometric pair is due to Milnor, "Eigenvalues of the Laplace operator on certain manifolds", Proc Natl Acad Sci U S A. 1964 Apr; 51(4): 542 ncbi.nlm.nih.gov/pmc/articles/PMC300113 | |
| Jun 25, 2018 at 12:38 | comment | added | Piotr Hajlasz | You are right. I did not realize that your argument is self-contained. I was too quick. | |
| Jun 25, 2018 at 6:57 | comment | added | Qiaochu Yuan | @Piotr: why? Everything I’ve said is a straightforward exercise. Also I don’t have a reference, because I learned all of this as an exercise that was assigned to me once. | |
| Sep 24, 2015 at 0:44 | history | answered | Qiaochu Yuan | CC BY-SA 3.0 |