The properties of generalized Kato-Fredholm operator matrices
Bai Yong-mao · Journal of Northwest Normal University · 2013
This paper provides the definition of generalized Kato-Fredholm operator as well as the corresponding spectrum,then the conditions that upper triangular operator matrices is the generalized Kato-Fredholm operator are studied,where A∈B(H),B∈B(H) and C∈B(K,H) in the Hilbert space.