| Trigonometric Widths and Best N-Term Approximations of the Generalized Periodic Besov Classes B_(p,θ)~Ω |
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| 基金项目： | Supported by the National Natural Science Foundation of China (Grant No.10671019); Scientific Research Foundation of Hangzhou Dianzi University (Grant No.KYS091507089) |
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| 摘 要： | In this paper,we determine the estimates exact in order for the trigonometric widths and the best n-term trigonometric approximations of the generalized classes of periodic functions B(p,θ)Ω in the space Lq for some values of parameters p,q.
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