西白保 敏彦

Approximation processes of integral operators in Banach spaces 

J. Nonlinear and Convex Anal 4(1) 125-140 2003年  

Approximation processes of integral operators in Banach spaces 

J. Nonlinear and Convex Anal 4(1) 125-140 2003年  

Approximation processes of integral operators in Banach spaces 

J. Nonlinear and Convex Anal 4(1) 125-140 2003年  

Approximation processes of integral operators in Banach spaces 

J. Nonlinear and Convex Anal 4(1) 125-140 2003年  

Refinements of Korovkin-type approximation processes, 

Rend. Circ. Mat. Palermo, 68, 711-725, 2002. (68) 711-725 2002年  

Refinements of Korovkin-type approximation processes 

Rend. Circ. Mat. Palermo (68) 711-725 2002年  

Refinements of Korovkin-type approximation processes, 

Rend. Circ. Mat. Palermo, 68, 711-725, 2002. (68) 711-725 2002年  

Refinements of Korovkin-type approximation processes 

Rend. Circ. Mat. Palermo (68) 711-725 2002年  

Approximation by convex sums of convolution type operators in Banach spaces 

J. Nonlinear and Convex Anal 2(1) 91-103 2001年  

Approximation by convex sums of convolution type operators in Banach spaces 

J. Nonlinear and Convex Anal 2(1) 91-103 2001年  

Approximation by convex sums of convolution type operators in Banach spaces 

J. Nonlinear and Convex Anal 2(1) 91-103 2001年  

The best approximation by projections in Banach spaces 

Taiwanese J. Math., 5(2) 375-386 2001年  

Approximation by convex sums of convolution type operators in Banach spaces 

J. Nonlinear and Convex Anal 2(1) 91-103 2001年  

The best approximation by projections in Banach spaces 

Taiwanese J. Math 5(2) 375-386 2001年  

General inverse theorems for the best approximation in Banach spaces, Proc. Int. Conf. Nonlinear Analysis and Convex Analysis, 

World Scientific 281-288 1999年  

Bernstein-type approximation processes for vector-valued functions 

Acta Math. Hungar 84(1-2) 153-162 1999年  

General inverse theorems for the best approximation in Banach spaces, Proc. Int. Conf. Nonlinear Analysis and Convex Analysis 

World Scientific 281-288 1999年  

Bernstein-type approximation processes for vector-valued functions 

Acta Math. Hungar 84(1,2) 153-162 1999年