Produi T De Trois Et De Quatre Opérateurs De Toepl Itz Tronques De Type α

Sarason [2] study algebraic properties of truncated Toeplitz operators led Sedlock find both necessary and sufficient conditions for which the product of twoToeplitz operators remains a truncated Toeplitz operator .In this article, we study the product of three and four truncated Toeplitz operators on truncated model space.