These guys do Dirac equation with FEM along t

Interesting simulation of Dirac equation [1] with FEM in all dimensions.

Any particular issues encountered using one of the FEM dimensions as time?
I’m not going to try a 3+1 D mesh generation but may try 2+1 :slight_smile:

[1]A Spacetime Finite Elements Method to Solve the Dirac Equation, {Sundermann}, Rylee  [ ...] {Kimn}, Jung-Han; arXiv e-prints. 2021