Projective reduction of the discrete painlevé system of type (A 2 + A1)(1)

Kenji Kajiwara, Nobutaka Nakazono, Teruhisa Tsuda

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20 Citations (Scopus)


We consider the q-Painlevé III equation arising from the birational representation of the affine Weyl group of type (A2 + A 1)(1). We study the reduction of the q-Painlevé III equation to the q-Painlevé II equation from the viewpoint of affine Weyl group symmetry. In particular, the mechanism of apparent inconsistency between the hypergeometric solutions to both equations is clarified by using factorization of difference operators and the τ functions.

Original languageEnglish
Pages (from-to)930-966
Number of pages37
JournalInternational Mathematics Research Notices
Issue number4
Publication statusPublished - 2011

All Science Journal Classification (ASJC) codes

  • General Mathematics


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