Abstract
This project is in great part the natural extension of the work realized in the Ph.D. Thesis of the candidate, which in turn is the extension of the Caetano’s Ph.D. Thesis, [10], and of the papers of Cordaro, [13], and Caetano and Cordaro, [11]. Both the candidate and the supervisor believe that the techniques involved in the study of infinite order operators can be applied in other conte…