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Remarks on the confluent KZ equation for \mathfrak{sl}_2 and quantum Painlevé equations

M Jimbo1, H Nagoya2 and J Sun1

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For the Lie algebra \mathfrak{sl}_2 , we give an explicit form of an irregular-singular version of the KZ equation. In the simplest non-trivial cases these KZ equations reproduce the quantum Painlevé equations \QPII \QPV possessing affine Weyl group symmetry, found previously by one of the authors.


PACS

02.10.Ud Linear algebra

02.30.Jr Partial differential equations

02.20.-a Group theory

MSC

34M55 Painlevé and other special equations; classification, hierarchies; isomonodromic deformations

35F05 General theory of linear first-order PDE

17B20 Simple, semisimple, reductive (super)algebras (roots)

22E47 Representations of Lie and real algebraic groups: algebraic methods (Verma modules, etc.) (See also 17B10)

Subjects

Mathematical physics

Dates

Issue 17 (2 May 2008)

Received 3 February 2008

Published 15 April 2008



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