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when toggle format what by license comment
May 10, 2022 at 0:51 history became hot network question
May 9, 2022 at 20:03 vote accept user404153
May 9, 2022 at 18:11 answer added Robert Bryant timeline score: 13
May 9, 2022 at 18:03 comment added user404153 @GiorgioMetafune so? You can shift them to be positive if you want.
May 9, 2022 at 17:59 comment added Giorgio Metafune But in that case the eigenfunctions change sign.
May 9, 2022 at 17:56 comment added user404153 @GiorgioMetafune I'm interested in the first non-trivial eigenvalue, $\lambda_1 > \lambda_0 = 0$.
May 9, 2022 at 17:52 comment added Giorgio Metafune For the sphere $\|x\|=1$, $\lambda_1=0$ and $f$ is constant if we consider the Laplace-Beltrami.
May 9, 2022 at 16:49 history asked user404153 CC BY-SA 4.0