Mironov Sergei Vladimirovich Russia Saratov State University 1, Saratov State University, Russia, 410012, Saratov, Astrahanskaya st., 83 MironovSV@info.sgu.ru Author's articles Heuristic algorithm for the cardinality constrained portfolio optimization problem Hash Functions for Diagnostic Information Reduction On One Algorithm for Finding of a Mask of Diagnostic Information On the Convergence of a Greedy Algorithm for the Solution of the Problem for the Construction of Monotone Regression