id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ejpam-4580	Lohaj, Shqipe	Structural and Spectral Properties of k-Quasi Class Q(N) and k-Quasi Class Q*(N) Operators	2022	18	.pdf	application/pdf	5251	408	85	we write the spectrum of T, the r(T ) is the spectral radius of operator T which is defined by r(T ) The σa(T ) is the approximate point spectrum of operator T and it is proved that if λ ∈ σa(T ), then there exist the sequence (xn), such as ∥xn∥ = 1 and ∥(T − λI)xn∥ → 0, n → ∞. The null operator and the identity on H will be denoted by O and I, respectively.	cache/ejpam-4580.pdf	txt/ejpam-4580.txt