The Broer–Kaup equations are a set of two coupled nonlinear partial differential equations:^[1]

${\displaystyle u_{y,t}+(2uu_{x})_{x}+2v_{xx}-u_{xxy}=0}$

${\displaystyle v_{t}+2(vu)_{x}+v_{xx}=0}$

References

1. Graham W. Griffiths, William E. Shiesser, "Traveling Wave Analysis of Partial Differential Equations", p. 135 Academic Press
2. Richard H. Enns, George C. McCGuire, Nonlinear Physics, Birkhauser, 1997
3. Inna Shingareva, Carlos Lizárraga-Celaya, Solving Nonlinear Partial Differential Equations with Maple Springer.
4. Eryk Infeld and George Rowlands, Nonlinear Waves, Solitons and Chaos, Cambridge 2000
5. Saber Elaydi, An Introduction to Difference Equationns, Springer 2000
6. Dongming Wang, Elimination Practice, Imperial College Press 2004
7. David Betounes, Partial Differential Equations for Computational Science: With Maple and Vector Analysis Springer, 1998 ISBN 9780387983004
8. George Articolo Partial Differential Equations & Boundary Value Problems with Maple V Academic Press 1998 ISBN 9780120644759