| In this paper we prove that d2k =δ2k =d2k ≥b2k, where d2k ,δ2k , b2k denote the Kolmogorov, linear, Bernstein 2k-widths of A(BlMp) in lNq, d2k denotes the Gelfand 2k width of AT(BlNq) in lMp, respectively. BlMp denotes the unit ball of lMp. A is a N×M CVD matrix ( N>M= rank A, M is odd). |
