Preface. Part I: Overview. 1. Introduction. Part II: Analytical Methods. 2. The Method of Multiple Scales and The epsilon-Power Series. 3. Hyperasymptotic Perturbation Theory. 4. Matched Asymptotic Expansions in the Complex Plane. 5. Stokes' Expansion, Resonance & Polycnoidal Waves. 6. Existence, Non-Existence & Symmetry. Part III: Numerical Methods. 7. Pseudospectral and Galerkin Methods. 8. Nonlinear Algebraic Equations. 9. Special Algorithms for Exponentially Small Phenomena. Part IV: Applications. 10. Water Waves: Fifth-Order Korteweg-De Vries Equation. 11. Rossby & Internal Gravity Waves: Nonlocal Higher Modes. 12. The 4 Breather. 13. Envelope Solitary Waves. 14. Separatrix Splitting & Slow Manifold. 15. Micropterons. Part V: Radiative Decay & Other Exponentially Small Phenomena. 16. Radiative Decay. 17. Non-Soliton Exponentially Small Phenomena. 18. The Future. A: Trigonometric and SECH Identities. B: SECH/TANH Series. C: Elliptic Functions. D: Solitons and Cnoidal Waves. E: Time Integration & Fourier Pseudospectral Algorithm. Glossary. References. Index.

This is the first thorough examination of weakly nonlocal solitary waves, which are just as important in applications as their classical counterparts. The book describes a class of waves that radiate away from the core of the disturbance but are nevertheless very long-lived nonlinear disturbances.