%0 Journal Article
%T A simple proof of the closed graph theorem
%A Alexander G. Ramm
%J -
%D 2016
%R 10.14419/gjma.v4i1.5534
%X Assume that A is a closed linear operator defined on all of a Hilbert space H. Then, A is bounded. This classical theorem is proved on the basis of uniform boundedness principle. The proof is easily extended to Banach spaces.
%U https://www.sciencepubco.com/index.php/GJMA/article/view/5534