RT journal article T1 Reductions and Conservation Laws of a Generalized Third-Order PDE via Multi-Reduction Method A1 Bruzón Gallego, María de los Santos A1 Rosa Silva, Rafael de la A1 Gandarias Núñez, María Luz A1 Tracinà, Rita A2 Matemáticas K1 third-order partial differential equations K1 conservation laws K1 multi-reduction method K1 partial differential equations AB In this work, we consider a family of nonlinear third-order evolution equations, where twoarbitrary functions depending on the dependent variable appear. Evolution equations of this typemodel several real-world phenomena, such as diffusion, convection, or dispersion processes, only tocite a few. By using the multiplier method, we compute conservation laws. Looking for travelingwaves solutions, all the the conservation laws that are invariant under translation symmetries aredirectly obtained. Moreover, each of them will be inherited by the corresponding traveling waveODEs, and a set of first integrals are obtained, allowing to reduce the nonlinear third-order evolutionequations under consideration into a first-order autonomous equation. PB MDPI SN 2227-7390 YR 2022 FD 2022-03 LK http://hdl.handle.net/10498/26725 UL http://hdl.handle.net/10498/26725 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 13-nov-2026