Journal of Inequalities and Applications (Jan 2008)

Exact Values of Bernstein <inline-formula> <graphic file="1029-242X-2008-894529-i1.gif"/></inline-formula>-Widths for Some Classes of Periodic Functions with Formal Self-Adjoint Linear Differential Operators

  • Guo Feng

Journal volume & issue
Vol. 2008, no. 1
p. 894529

Abstract

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Abstract We consider the classes of periodic functions with formal self-adjoint linear differential operators , which include the classical Sobolev class as its special case. With the help of the spectral of linear differential equations, we find the exact values of Bernstein -width of the classes in the for .