N. Ya. Vilenkin, R. E. Flaherty, “Functional Analysis” 
1972 | pages: 394 | ISBN: 9001909809 | PDF | 11,1 mb


Functional analysis originated at the beginning of the present century and became an independent mathematical discipline during the third and fourth decades; it developed rapidly and continues to do so. After the appearance of the remarkable book by the Polish mathematician S. Banach (Theorie des operations lineaires, Warsaw, 1932) the ideas and language of functional analysis permeated the most diverse branches of mathematics and its applications. This process has now gone so far that it is sometimes difficult to distinguish functional analysis from those fields in which it is applied. 


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