RT journal article T1 Conservation laws, symmetries, and line soliton solutions of generalized KP and Boussinesq equations with p-power nonlinearities in two dimensions A1 Anco, Stephen C. A1 Gandarias Núñez, María Luz A1 Recio Rodríguez, Elena A2 Matemáticas K1 line soliton K1 conservation law K1 Kadomtsev–Petviashvili equation AB Nonlinear generalizations of integrable equations in one dimension, such as the Korteweg–de Vries andBoussinesq equations with p-power nonlinearities, arise in many physical applications and are interestingfrom the analytic standpoint because of their critical behavior. We study analogous nonlinear p-powergeneralizations of the integrable Kadomtsev–Petviashvili and Boussinesq equations in two dimensions.For all p <>0, we present a Hamiltonian formulation of these two generalized equations. We derive allLie symmetries including those that exist for special powers p <> 0. We use Noether’s theorem to obtainconservation laws arising from the variational Lie symmetries. Finally, we obtain explicit line solitonsolutions for all powers p > 0 and discuss some of their properties PB Springer SN 0040-5779 YR 2018 FD 2018 LK http://hdl.handle.net/10498/33282 UL http://hdl.handle.net/10498/33282 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 11-nov-2026