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arXiv · 1010.3036

The Lattice Structure of Connection Preserving Deformations for q-Painlev\'e Equations I

Christopher M. Ormerod
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Abstract

We wish to explore a link between the Lax integrability of the $q$-Painlev\'e equations and the symmetries of the $q$-Painlev\'e equations. We shall demonstrate that the connection preserving deformations that give rise to the $q$-Painlev\'e equations may be thought of as elements of the groups of Schlesinger transformations of their associated linear problems. These groups admit a very natural lattice structure. Each Schlesinger transformation induces a B\"acklund transformation of the $q$-Painlev\'e equation. Each translational B\"acklund transformation may be lifted to the level of the associated linear problem, effectively showing that each translational B\"acklund transformation admits a Lax pair. We will demonstrate this framework for the $q$-Painlev\'e equations up to and including $q$-$\mathrm{P}_{\mathrm{VI}}$.

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Christopher M. Ormerod. 2010-10-14. The Lattice Structure of Connection Preserving Deformations for q-Painlev\'e Equations I. https://doi.org/10.3842/sigma.2011.045

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