Volume 231, Issue 2

This issue is a translation of Sibirskii Zhurnal Chistoi i Prikladnoi Matematiki (Siberian Journal of Pure and Applied Mathematics) edited by Sergey S. Goncharov, Vol. 17, No. 1-2, 2017. Translated into English and edited by Tamara Rozhkovskaya (rozhk@math.nsc.ru)