MainAuthors Ulanov Denis A. Financial University under the Government of the Russian Federation ARTICLES: An algorithm for the formation of an optimal portfolio of securities with a restriction on the range of acceptable values of profitability and portfolio risk Economic Problems and Legal Practice — Issue №3 2020: 90-94 The algorithms for searching the global extremum of the Markowitz portfolio optimization model Economic Problems and Legal Practice — Issue №2 2020: 166-169