2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/174354A model "remarkable" fin equation is singled out from a class of nonlinear (1+1)-dimensional fin equations. For this equation a number of exact solutions are constructed by means of using both classical Lie algorithm and different modern techniques (functional separation of variables, generalized conditional symmetries, hidden symmetries etc).6 pagesMathematical PhysicsExactly Solvable and Integrable Systems58J70; 35K57; 35C05; 35A30text