数学物理学报(英文版) ›› 1995, Vol. 15 ›› Issue (2): 161-170.
丘京辉
Qiu Jinghui
摘要: By investigating the properties of Hellinger-Toeplitz topologies, we establish a general version of Kalton's closed graph theorem. From this general version, we deduce a number of new closed graph theorems, which are convenient for application. Particularly we improve some results of Kalton.