RT journal article T1 Symmetry analysis for a Fisher equation with exponential diffusion. A1 Gandarias Núñez, María Luz A1 Rosa Durán, María A1 Tracinà, Rita A2 Matemáticas AB In this paper, we consider a generalized Fisher equation with exponential diffusion from the point of view of the theory of symmetry reductions in partial differential equations. The generalized Fisher-type equation arises in the theory of population dynamics. These types of equations have appeared in many fields of study such as in the reaction-diffusion equations, in heat transfer problems, in biology, and in chemical kinetics. By using the symmetry classification, simplified by equivalence transformations, for a special family of Fisher equations, all the reductions are derived from the optimal system of subalgebras and symmetry reductions are used to obtain exact solutions. SN 1099-1476 YR 2018 FD 2018 LK http://hdl.handle.net/10498/30929 UL http://hdl.handle.net/10498/30929 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 12-nov-2026