摘要The following theorems have improved the overall resalte summed up by Pak in §11 of his paper （35 （1980））. Let k,n∈{0,1,…}.Put △°λn=λn, △k+1λn=△kλn-△kλn+1 and En1-k=△kλn.
1Baorong Wei and Dansheng Yu Department of Mathematics Hangzhou Normal University Hangzhou, 310036P. R. China Department of Mathematics Hangzhou Normal University Hangzhou, 310036 P. R. China and Department of Mathematics Statistics and Computer Sciences St Franics Xaiver University Antigonish, Nova ScotiaCanada B2G 2w5.ON WEIGHTED L^p INTEGRABILITY AND APPROXIMATION OF TRIGONOMETRIC SERIES[J].Analysis in Theory and Applications,2009,25(1):40-54. 被引量：1
