Disproving the Deift conjecture: the loss of almost periodicity

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• Andreia Chapouto (Edinburgh)
• Monday 16 October 2023, 14:00-15:00
• MR13.

If you have a question about this talk, please contact Dr Greg Taujanskas.

In 2008, Deift conjectured that almost periodic initial data leads to almost periodic solutions to the Korteweg-de Vries equation (KdV). In this talk, we show that this is not always the case. Namely, we construct almost periodic initial data whose KdV evolution remains bounded but loses almost periodicity at a later time, by building on the new observation that the conjecture fails for the Airy equation. This is joint work with Rowan Killip and Monica Visan

This talk is part of the Partial Differential Equations seminar series.

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