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Subordination and Superordination for Multivalent Functions associated with the Differintegral Operator

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The purpose of the present paper is to obtain some subordination- and superordination- preserving properties for multivalent function associated the differintegral operators defined on the space of normalized analytic functions in the open unit disk. The sandwich type theorem for the integral operator is also considered.

Abstract

The purpose of the present paper is to obtain some subordination- and superordination- preserving properties for multivalent function associated the differintegral operators defined on the space of normalized analytic functions in the open unit disk. The sandwich type theorem for the integral operator is also considered.

참고문헌 (15)

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  13. H. M. Srivastava, "A certain fractional derivative operator and its applications to a new class of analytic and multivalent functions with negative coefficients. I and II", J. Math. anal. Appl., 171, pp.1~13 (1992)
  14. H. M. Srivastava, "A certain fractional derivative operator and its applications to a new class of analytic and multivalent functions with negative coefficients. II", 192, pp.673~688 (1995)
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