Bredikhin Dmitry Aleksandrovich Russia Saratov State University 1, Saratov State University, Russia, 410012, Saratov, Astrahanskaya st., 83 Professor Doctor of physico-mathematical sciencesbredikhin@mail.ru Author's articles On Classes of Groupoids of Relations with Diophantine Operations On Variety of Semigroups of Reletions with Operation of Reflexive Double Cylindrification On Varieties of Groupoids of Binary Relations On Varieties of Partially Ordered Semigroups with Operations of Cylindrification
