Extremal Problems of Approximation Theory in Linear Spaces

• Дата: 2003
• Автори: Stepanets, O. I., Степанец, А. И.
• Формат: Стаття
• Мова: Російська; Англійська
• Опубліковано: Institute of Mathematics, NAS of Ukraine 2003
• Онлайн доступ: https://umj.imath.kiev.ua/index.php/umj/article/view/4008
• Назва журналу: Ukrains’kyi Matematychnyi Zhurnal

We propose an approach that enables one to pose and completely solve main extremal problems in approximation theory in abstract linear spaces. This approach coincides with the traditional one in the case of approximation of sets of functions defined and square integrable with respect to a given σ-ad...