数学季刊 ›› 2016, Vol. 31 ›› Issue (1): 96-101.doi: 10.13371/j.cnki.chin.q.j.m.2016.01.012
摘要: Let M(u) be an N-function, Lr(f, x) and Kr(f, x) are Bak operator and Kantorovich operator, WM(Lr(f)) and WM(Kr(f)) are the Sobolev-Orlicz classes defined by Lr(f, x), Kr(f, x) and M(u). In this paper we give the asymptotic estimates of the n-K widths dn(WM(Lr(f)), L2[0, 1]) and dn(WM(Kr(f)), L2[0, 1]).
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