The problems of nonlinear acoustics which seem to be the most important and interesting today

摘要

The material of the correlated report delivered at the 18th International Symposium on Nonlinear Acoustics (ISNA-18) in July 2008 (Stockholm, Sweden) [1] is presented in a more comprehensive form [1]. These results have also been partially reported on in the lectures given at the 12th and 13th "Nonlinear Waves" schools in Nizhni Novgorod [2, 3]. The aim of the paper is to briefly consider the directions of the development of nonlinear acoustics and its successes which have been at the center of attention lately.