Nontensorial generalised hermite spectral methods for PDEs with fractional Laplacian and Schrödinger operatorsChangtao Sheng, Suna Ma, Huiyuan Li, Li-Lian Wang and Lueling JiaESAIM: M2AN, 55 5 (2021) 2141-2168DOI: https://doi.org/10.1051/m2an/2021049