The APDE seminar on Monday, 04/20, will be given by Daniel Tataru online via Zoom from 4:10 to 5pm. To participate, email Georgios Moschidis (gmoschidis@berkeley.edu) or Thibault de Poyferré (tdepoyfe@math.berkeley.edu).

Title: Multisolitons and their stability in 1-d cubic NLS.

Abstract: The aim of this talk is first to describe the multisoliton manifold for the 1-d cubic NLS flow, and then to consider their stability. This continues recent work, joint with Herbert Koch, on energy estimates for this and other related integrable evolutions.