2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/114470A class of one-dimensional Fokker-Plank equations having a common stationary solution, which is a power function of the state of the process, was found. We prove that these equations also have generalized self-similar solutions which describe the temporary transition from one stationary state to another. The study was motivated by problems arising in mathematical modeling of genome size evolution.9 pages; submitted to Discrete and Continuous Dynamical SystemsQuantitative MethodsOther Quantitative Biologytext