TY - JOUR AU - V. I. Arnol'd TI - Topological Classification of Trigonometric Polynomials Related to the Affine Coxeter Group~$\widetilde A_2$ JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2007 SP - 7 EP - 16 VL - 258 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_2007_258_a1/ LA - ru ID - TM_2007_258_a1 ER -