[1] NORDGREN E A.Composition operators [J].Canadian Journal of Mathematics,1968,20:442-449. [2] COWEN C C,MACCLUER B I.Composition operators on spaces of analytic functions [M].Roca Raton:CRC Press,1995. [3] KOOPMAN B O.Hamiltonian systems and transformation in Hilbert space [J].Proceedings of the national academy of sciences of the united states of america,1931,17(5):315-318. [4] NORDGREN E A.Composition operators on Hilbert spaces [M].Berlin:Springer,1978:37-63. [5] BUDZYŃSKIZ P,JABLOŃSKI Z,JUNG I B,et al.Unbounded Weighted Composition Operators in L2-Spaces [M].Paris:Springer,2018. [6] COHN D L.Measure theory [M].second edition.Paris:Springer,2013. [7] ASH R B,ROBERT B,DOLEANS-DADE C A,et al.Probability and measure theory [M].San Diego:Academic Press,2000. [8] RUDIN W.Real and complex analysis [M].New York:McGraw-Hill,1987. [9] WEIDMANN J.Linear operators in Hilbert spaces [M].New York:Springer-Verlag,1980. [10] WHITLEY R.Normal and quasinormal composition operators [J].Proceedings of the American Mathematical Society,1978,70(2):114-118. [11] BUDZYŃSKI P,JABLOŃSKI Z J,JUNGI B,et al.On unbounded composition operators inL2-Spaces [J].Annalidi Mathematica,2014,193:663-668. |