First Eigenvalues of the Spherical Laplacian December 6, 2025 Note The first eigenvalues of \(-\Delta_{\mathbb{S}^d_R}\) are \(\lambda_0 = 0\) \(\lambda_1 = \frac{d}{R^2}\) \(\lambda_2 = \frac{2d+2}{R^2}\) \(\lambda_3 = \frac{3d+6}{R^2}\) Links Link to heading eigenspaces of \(\Delta_{\mathbb{S}^d_R}\)