Библиографическая ссылка:
Ушакова Е.П. Entropy and approximation numbers of Hardy integral operator in weighted spaces of Besov and Triebel-Lizorkin type / Abstracts of the International Conference New perspectives in the theory of function spaces and their applications (NPFSA-2017). Бедлево: Университет Адама Мицкевича в Познани, 2017. С. 1.