• Title/Summary/Keyword: k-uniformly close-to-convex functions

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Certain Subclasses of k-uniformly Functions Involving the Generalized Fractional Differintegral Operator

  • Seoudy, Tamer Mohamed
    • Kyungpook Mathematical Journal
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    • v.58 no.2
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    • pp.243-255
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    • 2018
  • We introduce several k-uniformly subclasses of p-valent functions defined by the generalized fractional differintegral operator and investigate various inclusion relationships for these subclasses. Some interesting applications involving certain classes of integral operators are also considered.

CLASS-MAPPING PROPERTIES OF THE HOHLOV OPERATOR

  • Mishra, Akshaya K.;Panigrahi, Trailokya
    • Bulletin of the Korean Mathematical Society
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    • v.48 no.1
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    • pp.51-65
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    • 2011
  • In the present paper sufficient conditions, in terms of hyper-geometric inequalities, are found so that the Hohlov operator preserves a certain subclass of close-to-convex functions (denoted by $R^{\tau}$ (A, B)) and transforms the classes consisting of k-uniformly convex functions, k-starlike functions and univalent starlike functions into $\cal{R}^{\tau}$ (A, B).

Uniformly Close-to-Convex Functions with Respect to Conjugate Points

  • Bukhari, Syed Zakar Hussain;Salahuddin, Taimoor;Ahmad, Imtiaz;Ishaq, Muhammad;Muhammad, Shah
    • Kyungpook Mathematical Journal
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    • v.62 no.2
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    • pp.229-242
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    • 2022
  • In this paper, we introduce a new subclass of k-uniformly close-to-convex functions with respect to conjugate points. We study characterization, coefficient estimates, distortion bounds, extreme points and radii problems for this class. We also discuss integral means inequality with the extremal functions. Our findings may be related with the previously known results.