title: Long periodic waves on an even beach
abstract: High-order Boussinesq-type equations for long waves over an even slope are derived and investigated. Potential and surface elevation for periodic wave motion are expanded in Fourier series up to the third harmonic inclusively. Coefficients of this series are expressed as polynomials of Bessel functions.
authors.affiliation: General Physics Institute, Russian Academy of Science, Moscow, Russia.
authors.initials: A
authors.lastname: Shermenev
authors.initials: M
authors.lastname: Shermeneva