An application of the Ruscheweyh derivatives (Q1088807)

From MaRDI portal





scientific article; zbMATH DE number 3991849
Language Label Description Also known as
English
An application of the Ruscheweyh derivatives
scientific article; zbMATH DE number 3991849

    Statements

    An application of the Ruscheweyh derivatives (English)
    0 references
    0 references
    0 references
    0 references
    0 references
    1986
    0 references
    Let \(D^{\alpha}f(z)\) be the Ruscheweyh derivative defined by using the Hadamard product of f(z) and \(z/(1-z)^{1+\alpha}\). Certain new classes \(S^*_{\alpha}\) and \(K_{\alpha}\) are introduced by virtue of the Ruscheweyh derivative. The object of the present paper is to establish several interesting properties of \(S^*_{\alpha}\) and \(K_{\alpha}\) (see the review below). Further, some results for integral operator \(J_ c(f)\) of f(z) are shown.
    0 references
    starlike function
    0 references
    convex function
    0 references
    Ruscheweyh derivative
    0 references
    Hadamard product
    0 references
    integral operator
    0 references

    Identifiers