On Cesaro means of Fourjer Series and Power Series
Received:September 20, 1982  
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Liu Liwan 上海市第二工业大学虹桥分校 
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Abstract:
      Let f(x) be a periodic function of period 2π,|f(x)|and |f(x)|p integrable on [0,2π].It is said to be f∈HX1,if (∫0|f(x+h)-f(x)|pdx)1/p≤|h|.It is said to be f∈HX2,if (∫0|f(x+h)+f(x-h)-2f(x)|pdx)1/p≤2|h|.
Citation:
DOI:10.3770/j.issn:1000-341X.1986.04.019
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