To the theory of multiplicative cyclic semirings D. V. Chuprakov, E. M. Vechtomov, I. V. Orlova XV International Conference «Algebra, Number Theory and Discrete Geometry: modern problems and applications», dedicated to the centenary of the birth of the Doctor of Physical and Mathematical Sciences, Professor of the Moscow State University Korobov Nikolai Mikhailovich May 29, 2018 15:00