Multipliers for (C, α)-Bounded Fourier Expansions in Banach Spaces and Approximation Theory

1973 ◽  
Author(s):  
Walter Trebels
Keyword(s):  
Banach Spaces ◽  
Approximation Theory ◽  
Fourier Expansions

Approximation theory in 2-Banach spaces

2009 ◽  
Vol 71 (5-6) ◽  
pp. 1654-1661 ◽  
Author(s):  
Mehmet Gürdal ◽  
Ahmet Şahiner ◽  
Işıl Açık
Keyword(s):  
Banach Spaces ◽  
Approximation Theory

scholarly journals On summation processes of Fourier expansions in Banach spaces, I. Comparison theorems

1972 ◽  
Vol 24 (2) ◽  
pp. 127-140 ◽  
Author(s):  
P. L. Butzer ◽  
R. J. Nessel ◽  
W. Trebels
Keyword(s):  
Banach Spaces ◽  
Comparison Theorems ◽  
Fourier Expansions

scholarly journals On summation processes of Fourier expansions in Banach spaces, II. Saturation theorems

1972 ◽  
Vol 24 (4) ◽  
pp. 551-569 ◽  
Author(s):  
P. L. Butzer ◽  
R. J. Nessel ◽  
W. Trebels
Keyword(s):  
Banach Spaces ◽  
Fourier Expansions
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