scholarly journals Gel’fand theory in algebras of differentiable functions on Banach spaces

1985 ◽  
Vol 119 (2) ◽  
pp. 303-315
Author(s):  
José Galé
Symmetry ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1288
Author(s):  
Silvestru Sever Dragomir

In this paper we establish some error bounds in approximating the integral by general trapezoid type rules for Fréchet differentiable functions with values in Banach spaces.


1972 ◽  
Vol 13 (2) ◽  
pp. 122-128
Author(s):  
G. R. Wood ◽  
Sadayuki Yamamuro

In [2], K. D. Magill, Jr. has proved that every automorphism of the semigroup (with respect to composition) of all real-valued differentiable functions of a real variable is inner. The purpose of this paper is to generalize this fact to arbitrary finite-dimensional real Banach spaces.


1989 ◽  
Vol 40 (1) ◽  
pp. 91-95 ◽  
Author(s):  
J.A. Jaramillo

We present an example showing that a classical result due to Glaeser about the closedness of composition subalgebras of infinitely differentiable functions cannot be extended to the case of weakiy uniformly differentiable functions on Banach spaces.


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