International Journal of Mathematics and Mathematical Sciences
Volume 15 (1992), Issue 2, Pages 397-398
Note on modulational instability of Boussinesq wavetrains
Department of Mathematics, University of Central Florida, Orlando 32816, FL, USA
Received 3 September 1991
Copyright © 1992 S. Roy Choudhury. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
It is demonstrated that modulational instability may occur in Boussinesq wavetrains for wavenumbers , in contrast to the result found by Shivamoggi and Debnath. Both Whitham's averaged Lagrangian formulation and the technique of Benjamin and Feir are used.