The quaternionic KP hierarchy and conformally immersed 2-tori in the 4-sphere

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概要

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• The quaternionic KP hierarchy is the integrable hierarchy of p.d.e obtained by replacing the complex numbers with the quaternions in the standard construction of the KP hierarchy and its solutions; it is equivalent to what is often called the Davey-Stewartson II hierarchy. This article studies its relationship with the theory of conformally immersed tori in the 4-sphere via quaternionic holomorphic geometry. The Sato-Segal-Wilson construction of KP solutions is adapted to this setting and the connection with quaternionic holomorphic curves is made. We then compare three different notions of "spectral curve" the QKP spectral curve; the Floquet multiplier spectral curve for the related Dirac operator; and the curve parameterising Darboux transforms of a conformal 2-torus in the 4-sphere.

著者

• Mcintosh Ian

  Department Of Mathematics University Of York

関連論文

• The quaternionic KP hierarchy and conformally immersed 2-tori in the 4-sphere

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