ON A CLASS OF UNIVALENT FUNCTIONS DEFINED BY SĂLĂGEAN INTEGRO-DIFFERENTIAL OPERATOR.

In this paper we consider the Ln : A → A, Ln f(z) = (1 - λ) Dn f(z) + λIn f (z) linear operator, where Dn is the Sălăgean differential operator and I n is the Sălăgean integral operator. We study several differential subordinations generated by Ln. We introduce a class of holomorphic functions Lnm(β), and obtain some subordination results. [ABSTRACT FROM AUTHOR]