Abstract:
For the linear differential third-order operator $\mathcal {L}_3(D)=D(D^2+\alpha^2)$ ($\alpha>0$), Lebesgue constants (the norms of linear operators from $C$ to $C$) are calculated exactly for two types of local (noninterpolational) trigonometric splines with uniform knots.
Keywords:
Lebesgue constants, trigonometric splines, differential operators of the third order.
Citation:
E. V. Strelkova, V. T. Shevaldin, “On uniform Lebesgue constants of third-order local trigonometric splines”, Trudy Inst. Mat. i Mekh. UrO RAN, 22, no. 2, 2016, 245–254