Borislav Radkov Draganov
Associate professor
PhD
Email:
bdraganov(at)fmi.uni-sofia.bg
Phone:
+359 2 8161 766
Room:
FMI-211
An improved Jackson inequality for best trigonometric approximation, Ukr. Mat. Zhurn. 65 (2013), 1219-1226 and Ukrainian Math. J. 65 (2014), 1354-1362 (pdf, final publication available at link.springer.com); a preprint: A sharp Jackson inequality for best trigonometric approximation, CRM Preprint Series 1101, 2012 (available at CRM).