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Subordination and superordination preserving properties for a family of integral operators involving the Noor integral operator

Abstract: In the present paper, we introduce a family of integral operators associate with the Noor integral operator in the open unit disk U={z∈C:|z|<1}, which is defined by the convolution , whereBy using the operator , we investigate some subordination and superordination preserving properties for certain classes of analytic and multivalent functions in U. Various sandwich-type results for these multivalent functions are also obtained.