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The KdV hierarchy at H^{-1} regularity

[Moved Online] Recent Developments in Fluid Dynamics April 12, 2021 - April 30, 2021

April 12, 2021 (09:00 AM PDT - 09:50 AM PDT)
Speaker(s): Herbert Koch (Rheinische Friedrich-Wilhelms-Universität Bonn)
Location: SLMath: Online/Virtual
Tags/Keywords
  • KdV hierarchy

  • Miura map

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The KdV Hierarchy at H^{-1} Regularity

Abstract

This is a report on joint work with Friedrich Klaus and Baoping Liu. We prove wellposedness for all equations of the KdV hierarchy in H^{-1}. The proof follows the outline of Killip and Visan for KdV: We prove tightness, and convergence of the difference flow simultaneously for all equations of the hierarchy.

In contrast to Killip and Visan we reduce the problem via a modified Miura map to the Gardner hierarchy.

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The KdV Hierarchy at H^{-1} Regularity

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