摘要
引入ω-型单调函数的概念,研究了Fourier级数部分和对其的逼近问题,推广了Mazhar(1991)的结果,减弱了Salem和Zygmund(1946)的结果的条件,使Salem和Zygmund的结论适用于更大的函数类.
Abstract: The concept of ωtype monotonic function is introduced,and an approximation of the partial sums of Fourier series for ωtype monotonic functions is investigated.Furthermore the results obtained by Mazhar,by Salem and Zygmund are generalized and improved respectively.
出处
《高校应用数学学报(A辑)》
CSCD
北大核心
2002年第1期51-55,共5页
Applied Mathematics A Journal of Chinese Universities(Ser.A)
基金
宁波大学科研基金(992102G)