Exact constants in Jackson-type inequalities for $L_2$-approximation on an axis

• Datum: 2009
• Hauptverfasser: Doronin, V. G., Ligun, A. A., Serdyuk, A. S., Shydlich, A. L., Доронин, В. Г., Лигун, А. А., Сердюк, А. С., Шидлич, А. Л.
• Format: Artikel
• Sprache: Russisch; Englisch
• Veröffentlicht: Institute of Mathematics, NAS of Ukraine 2009
• Online Zugang: https://umj.imath.kiev.ua/index.php/umj/article/view/3005
• Назва журналу: Ukrains’kyi Matematychnyi Zhurnal

We investigate exact constants in Jackson-type inequalities in the space $L_2$ for the approximation of functions on an axis by the subspace of entire functions of exponential type.