Zero-dispersion limit for the Benjamin-Ono equation on the torus with single well initial data

Abstract

We consider the zero-dispersion limit for the Benjamin-Ono equation on the torus. We prove that when the initial data is a single well, the zero-dispersion limit exists in the weak sense and is uniform on every compact time interval. Moreover, the limit is equal to the signed sum of branches for the multivalued solution of the inviscid Burgers equation obtained by the method of characteristics. This result is similar to the one obtained by Miller and Xu for the Benjamin-Ono equation on the real line for decaying and positive initial data. We also establish some precise asymptotics of the spectral data with the cosine initial data, justifying our approximation method, which is analogous to the work of Miller and Wetzel concerning a family of rational potentials for the Benjamin-Ono equation on the real line.

References in corpus (2)

• Complete integrability of the Benjamin--Ono equation on the multi-soliton manifolds
• Zero-dispersion limit for the Benjamin-Ono equation on the torus with single well initial data

Cited by in corpus (4)

• Zero-dispersion limit for the Benjamin-Ono equation on the torus with single well initial data
• Zero dispersion limit of the Calogero-Moser derivative NLS equation
• Explicit formula for the Benjamin--Ono equation with square integrable and real valued initial data and applications to the zero dispersion limit
• Spectral Theory of the Nazarov-Sklyanin Lax Operator