I was browsing the literature on weak formulations and came across this[1]
which seems to doe FEM along time which has crossed my mind before.
Any facility for doing 3 spatial plus time with FF? Is it practical? Thanks. `
[1]An Ultra-Weak Space-Time Variational Formulation for the Schr{\o}dinger Equation, {Hain}, Stefan and {Urban}, Karsten; arXiv e-prints. 2022
`[1]An Ultra-Weak Space-Time Variational Formulation for the Schr{\o}dinger Equation, {Hain}, Stefan and {Urban}, Karsten; arXiv e-prints. 2022