1. Manifolds, Tensor Analysis, and Applications;Abraham,2001
2. Spherical Harmonics and Approximations on the Unit Sphere: An Introduction;Atkinson,2012
3. Symmetric diffusions with polynomial eigenvectors;Bakry,2014
4. Diffusions with polynomial eigenvectors via finite subgroups of O(3);Bakry;Ann. Fac. Sci. Toulouse Math.,2016
5. Orthogonal polynomials and diffusion operators;Bakry;Ann. Fac. Sci. Toulouse Math.,2021