n-widths and optimal interpolation of time- and band-limited functions. (English) Zbl 0418.41018
Optim. Estim. Approx. Theory, Proc. int. Symp., Freudenstadt 1976, 55-68 (1978).
MSC:
41A46 | Approximation by arbitrary nonlinear expressions; widths and entropy |
41A05 | Interpolation in approximation theory |