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CHARACTERIZATION OF BEST UNIFORM COAPPROXIMATION 被引量:2

CHARACTERIZATION OF BEST UNIFORM COAPPROXIMATION
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摘要 This paper deals with Kolmogorov criterion for best uniform coapproximation and strongly unique best uniform coapproximation. Some relations between best uniform approximation and best uniform coapproximation are obtained. Some equalities and best uniform coapproximation are connected. This paper deals with Kolmogorov criterion for best uniform coapproximation and strongly unique best uniform coapproximation. Some relations between best uniform approximation and best uniform coapproximation are obtained. Some equalities and best uniform coapproximation are connected.
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出处 《Analysis in Theory and Applications》 1999年第1期23-37,共15页 分析理论与应用(英文刊)
关键词 oscillatory integral operator MULTIPLIER SINGULARITY oscillatory integral operator multiplier singularity
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同被引文献2

  • 1Pier Luigi Papini,Ivan Singer.Best coapproximation in normed linear spaces[J].Monatshefte für Mathematik.1979(1)
  • 2Pier Luigi Papini,Ivan Singer.Best coapproximation in normed linear spaces[J].Monatshefte für Mathematik.1979(1)

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