• 제목/요약/키워드: Convex funcions

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A Study on Two Subclasses of Analytic and Univalent Functions with Negative Coefficients Involving the Poisson Distribution Series

  • Abdul Moneim Yousof Lashin;Abeer Omard Ahmad Badghaish;Fayzah Awad Alshehri
    • Kyungpook Mathematical Journal
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    • 제64권1호
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    • pp.47-55
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    • 2024
  • This paper introduces two new subclasses of analytical functions with negative coefficients and derives coefficient estimates for these novel subclasses. Further, inclusion relations and necessary and sufficient conditions for the Poisson distribution series to belong to these subclasses are established.