Journal of Operator Theory, Vol. 58, No. 2 (Fall 2007), pp. 415-440 (26 pages) In this paper the well-known result that a definitizable operator in a Krein space remains definitizable after a finite ...

In the Hilbert space L A 2 ( I;E )( I:=[ a,b ),−∞ 0 ) , the maximal dissipative singular matrix-valued Sturm–Liouville operators that the extensions of a minimal symmetric operator with maximal ...