A Certain Subclass of Multivalent Analytic Functions with Negative Coefficients for Operator on Hilbert Space

Abstract

By making use of the operators on Hilbert space, we introduce and studya subclass Ak of multivalent analytic functions with negative coecients. Also we obtain some geometric properties.DOI : http://dx.doi.org/10.22342/jims.21.2.228.77-8