Projective reduction of the discrete Painlevé system of type $(A_2+A_1{)}^{(1)}$

Kenji Kajiwara, Nobutaka Nakazono, Teruhisa Tsuda

We consider the q-Painlevé III equation arising from the birational representation of the affine Weyl group of type $(A_2+A_1{)}^{(1)}$. We study the reduction of the q-Painlevé II…