Nonlinear dispersive waves in general, and solitons in particular, are \u201cuniversal\u201d objects in physics: they describe the propagation of hydrodynamic waves as well as localised waves in plasma physics, the propagation of light in optical fibres or energy transfer phenomena in molecular systems, vortices in Bose-Einstein condensates, and so on. In all these situations, the formation of coherent and stable spatial structures has been observed experimentally and can be explained by the theory of integrable non-linear equations. However, none of these systems is exactly described by an integrable equation; these models are asymptotic models. Moreover, when microscopic phenomena come into play, the influence of temperature may not be negligible, which generally gives rise to random perturbations of the macroscopic model.The aim of this general audience seminar will be to introduce some of these dispersive models in different contexts, to explain how to take these random perturbations into account and to give some results concerning the influence of these perturbations on the dynamics of these dispersive waves.<\/p>\n
DE BOUARD, Anne<\/a> (Senior Scientist, Research Director, CNRS and \u00c9cole Polytechnique)<\/p>\n 2025\u5e749\u67082\u65e5\uff08\u706b\uff0915:00-16:00 \/ September 2, 2025 (Tue.)\u00a0 15:00-16:00<\/p>\n \u65e9\u7a32\u7530\u5927\u5b66 \u897f\u65e9\u7a32\u7530\u30ad\u30e3\u30f3\u30d1\u30b9 63\u53f7\u9928 2\u968e05\u4f1a\u8b70\u5ba4\/Building #63, Room #2-05 Nishi-Waseda Campus, Waseda University<\/p>\n \u82f1\u8a9e \/ English<\/p>\n \u5b66\u751f\u30fb\u7814\u7a76\u8005\u30fb\u6559\u8077\u54e1\u30fb\u4e00\u822c \/ Undergraduate, Graduate, Researchers, Faculty members, general audience<\/p>\n \u65e9\u7a32\u7530\u5927\u5b66 \u57fa\u5e79\u7406\u5de5\u5b66\u90e8 \u6570\u5b66\u79d1<\/a> \/ Department of Mathematics, School of Fundamental Science and Engineering, Waseda University\u00a0<\/a><\/p>\n \u65e9\u7a32\u7530\u5927\u5b66 \u6570\u7269\u7cfb\u79d1\u5b66\u62e0\u70b9<\/a> \/ Waseda University Mathematics and Physics Unit<\/a> \u7814\u7a76\u6559\u80b2\u6d3b\u52d5<\/a><\/p><\/blockquote>\n\u65e5\u3000\u6642 \/ Date & Time<\/h5>\n
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\n\u65e9\u7a32\u7530\u5927\u5b66 \u9ad8\u7b49\u7814\u7a76\u6240 \/ Waseda Institute for Advanced Studies (WIAS)<\/p>\n\u57fa\u5e79\u7406\u5de5\u5b66\u90e8\u6570\u5b66\u79d1HP<\/h5>\n