The soliton vs. the gas: Fredholm determinants, analysis and finer details

Speaker(s) Manuela Girotti Saint Mary's University; Concordia University
Date 18 July 2022 – 10:00 to 10:30
Venue INI Seminar Room 1
Session Title The soliton vs. the gas: Fredholm determinants, analysis and finer details
Event [HY2W06] Women in dispersive equations day
Abstract

We analyze the case of a (dense) mKdV soliton gas and its large time behaviour in the presence of a single trial soliton. The solution, which can be expressed in terms of Fredholm determinants, can be decomposed as the sum of the background gas solution (an elliptic wave), plus a soliton solution: the individual expressions are however quite convoluted due to the interaction dynamics. We are also able to derive the kinetic velocity equations and the local phase shift of the gas after the passage of the soliton, and we can trace the location of the soliton peak as the dynamics evolves. This is a joint work with T. Grava (SISSA/Bristol), R. Jenkins (UCF), K. McLaughlin (CSU) and A. Minakov (U.Karlova).

Presentation Files 36489_0.pdf

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