Bäcklund transformations for the second Painlevé hierarchy: a modified truncation approach

Abstract

The second Painlevé hierarchy is defined as the hierarchy of ordinary differential equations obtained by similarity reduction from the modified Korteweg-de Vries hierarchy. Its first member is the well-known second Painlevé equation, P2. In this paper we use this hierarchy in order to illustrate our application of the truncation procedure in Painlevé analysis to ordinary differential equations. We extend these techniques in order to derive auto-Bäcklund transformations for the second Painlevé hierarchy. We also derive a number of other Bäcklund transformations, including a Bäcklund transformation onto a hierarchy of P34 equations, and a little known Bäcklund transformation for P2 itself. We then use our results on Bäcklund transformations to obtain, for each member of the P2 hierarchy, a sequence of special integrals.

12 pages in LaTeX 2.09 (uses ioplppt.sty), to appear in Inverse Problems

References in corpus (2)

• Non-autonomous Hénon-Heiles Systems
• Mappings preserving locations of movable poles: a new extension of the truncation method to ordinary differential equations

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