The partial differential equation
where is the Laplacian (Ting et al. 1987; Zwillinger 1997, p. 135).
The partial differential equation
where is the Laplacian (Ting et al. 1987; Zwillinger 1997, p. 135).
Weisstein, Eric W. "Sinh-Poisson Equation." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Sinh-PoissonEquation.html