Persons RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB     Kachuryk, Ivan E-mail: https://www.mathnet.ru/eng/person50114 List of publications on Google Scholar https://mathscinet.ams.org/mathscinet/MRAuthorID/189840 Publications in Math-Net.Ru Citations 2007 1. Ivan Kachuryk, Anatoliy Klimyk, “Eigenfunction Expansions of Functions Describing Systems with Symmetries”, SIGMA, 3 (2007), 055, 84 pp.           2006 2. Valentyna A. Groza, Ivan I. Kachuryk, “On Orthogonality Relations for Dual Discrete $q$-Ultraspherical Polynomials”, SIGMA, 2 (2006), 034, 8 pp.           Organisations Khmelnitskiy National University