Time-step restrictions for numerical approximations of the Poisson-Nernst-Planck (PNP) equations
Karoline Horgmo Jæger, Aslak Tveito
The paper explains why solving the PNP equations in a coupled manner allows larger time steps, using special cases to illustrate stability conditions.
bioRxiv · May 6, 2026 · PreprintBiophysics