2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/120000I begin by reviewing the arguments leading to a nonlinear generalisation of Schrodinger's equation within the context of the maximum uncertainty principle. Some exact and perturbative properties of that equation are then summarised: those results depend on a free regulating/interpolation parameter $η$. I discuss here how one may fix that parameter using energetics. Other issues discussed are, a linear theory with an external potential that reproduces some unusual exact solutions of the nonlinear equation, and possible symmetry enhancements in the nonlinear theory.8 pages. Presented at the Nonlinearity IV workshop held at Gallipoli, Italy, June 2006. To appear in proceedingsQuantum PhysicsHigh Energy Physics - TheoryPattern Formation and Solitonstext