On spectrum of some classes of matrix operators
M. I. Ismailov

References
1.	Danford N., Shvarts Dzh. T., Lineinye operatory, v 3 t., v. III, Spektralnye operatory, Mir, M., 1974
2.	Ismailov M. I., “On spectrum property of matrix operators in Banach space”, Trans. NAS of Azerb., 33 (2006), 47–52
3.	Ismailov M. I., “O spektralnosti matrichnykh operatorov v banakhovom prostranstve”, Izv. Sarat. un-ta. Nov. ser. Ser. Matematika. Mekhanika. Informatika, 9:4 (2009), 23–28