%A Gu Caixing %N 3-4 %P 605-641 %D 2015 %L acta36288 %O Bibliogr.: p. 639-641. %K DifferenciĂĄlegyenlet %T Functional calculus for ra-isometries and related operators on Hilbert spaces and Banach spaces %J Acta scientiarum mathematicarum %V 81