TY - JOUR AU - F. N. Garif'yanov AU - E. V. Strezhneva TI - Sum-difference equation for analytic functions, generated by a hexagon, and its applications JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2020 SP - 56 EP - 62 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2020_7_a5/ LA - ru ID - IVM_2020_7_a5 ER -